Bug 1191790 – VUL-0: CVE-2021-20322: kernel-source-azure,kernel-source-rt,kernel-source: new DNS Cache Poisoning Attack based on ICMP fragment needed packets replies

Bug 1191790 - (CVE-2021-20322) VUL-0: CVE-2021-20322: kernel-source-azure,kernel-source-rt,kernel-source: new DNS Cache Poisoning Attack based on ICMP fragment needed packets replies

(CVE-2021-20322)
Summary:	VUL-0: CVE-2021-20322: kernel-source-azure,kernel-source-rt,kernel-source: ne...

Status:	RESOLVED FIXED

Classification:	Novell Products
Product:	SUSE Security Incidents
Classification:	Novell Products
Component:	Incidents
Version:	unspecified
Hardware:	Other Other

Priority:	P3 - Medium Severity: Major
Target Milestone:	---
Assigned To:	Security Team bot
QA Contact:	Security Team bot

URL:	https://smash.suse.de/issue/312780/
Whiteboard:	CVSSv3.1:SUSE:CVE-2021-20322:7.4:(AV:...
Keywords:

Depends on:
Blocks:	1191813
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Reported:	2021-10-18 14:56 UTC by Gianluca Gabrielli
Modified:	2023-01-16 14:16 UTC (History)
CC List:	7 users (show)

See Also:
Found By:	Security Response Team
Services Priority:
Business Priority:
Blocker:	---
Marketing QA Status:	---
IT Deployment:	---

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Description Gianluca Gabrielli 2021-10-18 14:56:20 UTC

A flaw in the processing of the received ICMP errors (ICMP fragment needed and ICMP redirect) in the Linux kernel functionality was found that allows to quickly scan open UDP ports. This flaw allows an off-path remote user to effectively bypassing source port UDP randomization.
This flaw is similar to the previous CVE-2020-25705 (both DNS poisoning attack based on ICMP replies for open ports scanning, but other type of ICMP packets).

As result of research work, Keyu Man reported that the IP fragments (fragmented PING echo reply) could be used by attackers to get useful signal (that for example could be used for the DNS poisoning attack).
After considering what could be improved in kernel to prevent this, there two suggested ways:
I. The most direct way is to use the socket option IP_PMTUDISC_OMIT, which instructs the OS not to accept the ICMP frag needed messages and therefore eliminates the side channel related processing in the kernel;
II. Randomize the caching structure:
(1) the max length of the linked list used for solving hash collisions (currently 5),
(2) the eviction policy (currently the oldest will always be evicted),
(3) the secret of hash function, i.e., we can re-key periodically (every few seconds or tens of seconds).

Reference (for IPv6 and IPv4 patch respectively):
git commit 4785305c05b25a242e5314cc821f54ade4c18810 (plus a00df2caffed3883c341d5685f830434312e4a43)
and 6457378fe796815c973f631a1904e147d6ee33b1 (plus 67d6d681e15b578c1725bad8ad079e05d1c48a8e).

References:
https://bugzilla.redhat.com/show_bug.cgi?id=2014230
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-20322

Comment 1 Gianluca Gabrielli 2021-10-18 15:00:06 UTC

Affected branches:
 - cve/linux-4.4
 - cve/linux-4.12
 - SLE12-SP5
 - SLE15-SP2
 - SLE15-SP3

Already fixed:
 - stable
 - SLE15-SP4

Comment 2 Michal Hocko 2021-10-18 17:24:00 UTC

Jiri, could you have a look please?

Comment 4 Jiri Bohac 2021-11-16 13:29:24 UTC


(In reply to Gianluca Gabrielli from comment #1)
> Affected branches:
>  - cve/linux-4.4
>  - cve/linux-4.12
>  - SLE12-SP5

SLE12-SP5 will merge from cve/linux-4.12
For both cve branches I backported the two IPv4 patches.

For IPv6 the hashed dst cache has been implemented by 
commit 35732d01fe311ec13c4e42936878b782b8e7ea85 ("ipv6: introduce a hash table to store dst cache"), that is v4.15.

Since I don't know the details of the attack, I can't tell if the FIB implementation present in these older kernels is vulnerable to the attack in the same way as the newer dst hash.

So for now I left the IPv6 parts out. Let's wait until we have more details about the attack.

>  - SLE15-SP2
>  - SLE15-SP3

I pushed the patches to users/jbohac/SLE15-SP2/for-next, SLE15-SP3 will merge  from there

Comment 7 OBSbugzilla Bot 2021-11-22 23:40:55 UTC

This is an autogenerated message for OBS integration:
This bug (1191790) was mentioned in
https://build.opensuse.org/request/show/933172 15.2 / kernel-source

Comment 15 Swamp Workflow Management 2021-11-24 20:27:46 UTC

openSUSE-SU-2021:1501-1: An update that solves 6 vulnerabilities, contains one feature and has 22 fixes is now available.

Category: security (important)
Bug References: 1094840,1133021,1152489,1169263,1170269,1188601,1190523,1190795,1191790,1191851,1191958,1191961,1191980,1192045,1192229,1192267,1192273,1192328,1192718,1192740,1192745,1192750,1192753,1192781,1192802,1192896,1192906,1192918
CVE References: CVE-2021-0941,CVE-2021-20322,CVE-2021-31916,CVE-2021-34981,CVE-2021-37159,CVE-2021-43389
JIRA References: SLE-22573
Sources used:
openSUSE Leap 15.2 (src):    kernel-debug-5.3.18-lp152.106.1, kernel-default-5.3.18-lp152.106.1, kernel-default-base-5.3.18-lp152.106.1.lp152.8.52.1, kernel-docs-5.3.18-lp152.106.1, kernel-kvmsmall-5.3.18-lp152.106.1, kernel-obs-build-5.3.18-lp152.106.1, kernel-obs-qa-5.3.18-lp152.106.1, kernel-preempt-5.3.18-lp152.106.1, kernel-source-5.3.18-lp152.106.1, kernel-syms-5.3.18-lp152.106.1

Comment 18 Swamp Workflow Management 2021-11-25 17:19:40 UTC

SUSE-SU-2021:3806-1: An update that solves 6 vulnerabilities, contains one feature and has 35 fixes is now available.

Category: security (important)
Bug References: 1094840,1133021,1152489,1154353,1157177,1167773,1169263,1170269,1176940,1180749,1184924,1188601,1190523,1190795,1191628,1191790,1191851,1191958,1191961,1191980,1192045,1192217,1192229,1192267,1192273,1192288,1192328,1192375,1192473,1192549,1192718,1192740,1192745,1192750,1192753,1192758,1192781,1192802,1192896,1192906,1192918
CVE References: CVE-2021-0941,CVE-2021-20322,CVE-2021-31916,CVE-2021-34981,CVE-2021-37159,CVE-2021-43389
JIRA References: SLE-22573
Sources used:
SUSE Linux Enterprise Module for Public Cloud 15-SP3 (src):    kernel-azure-5.3.18-38.31.1, kernel-source-azure-5.3.18-38.31.1, kernel-syms-azure-5.3.18-38.31.1

NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.

Comment 19 Swamp Workflow Management 2021-11-25 17:29:06 UTC

openSUSE-SU-2021:3806-1: An update that solves 6 vulnerabilities, contains one feature and has 35 fixes is now available.

Category: security (important)
Bug References: 1094840,1133021,1152489,1154353,1157177,1167773,1169263,1170269,1176940,1180749,1184924,1188601,1190523,1190795,1191628,1191790,1191851,1191958,1191961,1191980,1192045,1192217,1192229,1192267,1192273,1192288,1192328,1192375,1192473,1192549,1192718,1192740,1192745,1192750,1192753,1192758,1192781,1192802,1192896,1192906,1192918
CVE References: CVE-2021-0941,CVE-2021-20322,CVE-2021-31916,CVE-2021-34981,CVE-2021-37159,CVE-2021-43389
JIRA References: SLE-22573
Sources used:
openSUSE Leap 15.3 (src):    kernel-azure-5.3.18-38.31.1, kernel-source-azure-5.3.18-38.31.1, kernel-syms-azure-5.3.18-38.31.1

Comment 20 Swamp Workflow Management 2021-11-25 17:35:09 UTC

SUSE-SU-2021:3807-1: An update that solves 6 vulnerabilities and has 23 fixes is now available.

Category: security (important)
Bug References: 1094840,1152489,1169263,1170269,1188601,1190523,1190795,1191628,1191790,1191851,1191958,1191961,1191980,1192045,1192229,1192267,1192273,1192328,1192549,1192718,1192740,1192745,1192750,1192753,1192781,1192802,1192896,1192906,1192918
CVE References: CVE-2021-0941,CVE-2021-20322,CVE-2021-31916,CVE-2021-34981,CVE-2021-37159,CVE-2021-43389
JIRA References: 
Sources used:
SUSE Linux Enterprise Module for Public Cloud 15-SP2 (src):    kernel-azure-5.3.18-18.75.1, kernel-source-azure-5.3.18-18.75.1, kernel-syms-azure-5.3.18-18.75.1

NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.

Comment 27 Swamp Workflow Management 2021-12-01 20:45:35 UTC

SUSE-SU-2021:3848-1: An update that solves 6 vulnerabilities, contains one feature and has 16 fixes is now available.

Category: security (important)
Bug References: 1094840,1114648,1141655,1188601,1190351,1190397,1190523,1190795,1191713,1191790,1191888,1191961,1192045,1192267,1192273,1192379,1192718,1192750,1192753,1192781,1192802,1192906
CVE References: CVE-2021-0941,CVE-2021-20322,CVE-2021-31916,CVE-2021-34981,CVE-2021-37159,CVE-2021-3772
JIRA References: SLE-22573
Sources used:
SUSE Linux Enterprise Server 12-SP5 (src):    kernel-azure-4.12.14-16.80.1, kernel-source-azure-4.12.14-16.80.1, kernel-syms-azure-4.12.14-16.80.1

NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.

Comment 28 Swamp Workflow Management 2021-12-02 11:27:25 UTC

openSUSE-SU-2021:3876-1: An update that solves 43 vulnerabilities, contains one feature and has 26 fixes is now available.

Category: security (important)
Bug References: 1100416,1108488,1129735,1129898,1133374,1136513,1171420,1176724,1177666,1181158,1184673,1184804,1185377,1185726,1185758,1185973,1186078,1186109,1186390,1186482,1186672,1188062,1188063,1188172,1188563,1188601,1188616,1188838,1188876,1188983,1188985,1189057,1189262,1189291,1189399,1189400,1189706,1189846,1189884,1190023,1190025,1190067,1190115,1190117,1190159,1190276,1190349,1190351,1190479,1190534,1190601,1190717,1191193,1191315,1191317,1191349,1191457,1191628,1191790,1191800,1191888,1191961,1192045,1192267,1192379,1192400,1192775,1192781,1192802
CVE References: CVE-2018-13405,CVE-2018-9517,CVE-2019-3874,CVE-2019-3900,CVE-2020-0429,CVE-2020-12770,CVE-2020-3702,CVE-2020-4788,CVE-2021-0941,CVE-2021-20322,CVE-2021-22543,CVE-2021-31916,CVE-2021-33033,CVE-2021-33909,CVE-2021-34556,CVE-2021-34981,CVE-2021-3542,CVE-2021-35477,CVE-2021-3640,CVE-2021-3653,CVE-2021-3655,CVE-2021-3656,CVE-2021-3659,CVE-2021-3679,CVE-2021-3715,CVE-2021-37159,CVE-2021-3732,CVE-2021-3744,CVE-2021-3752,CVE-2021-3753,CVE-2021-37576,CVE-2021-3759,CVE-2021-3760,CVE-2021-3764,CVE-2021-3772,CVE-2021-38160,CVE-2021-38198,CVE-2021-38204,CVE-2021-40490,CVE-2021-41864,CVE-2021-42008,CVE-2021-42252,CVE-2021-42739
JIRA References: SLE-22573
Sources used:
openSUSE Leap 15.3 (src):    kernel-debug-4.12.14-197.102.2, kernel-default-4.12.14-197.102.2, kernel-kvmsmall-4.12.14-197.102.2, kernel-vanilla-4.12.14-197.102.2, kernel-zfcpdump-4.12.14-197.102.2

Comment 29 Swamp Workflow Management 2021-12-02 11:39:45 UTC

SUSE-SU-2021:3876-1: An update that solves 43 vulnerabilities, contains one feature and has 26 fixes is now available.

Category: security (important)
Bug References: 1100416,1108488,1129735,1129898,1133374,1136513,1171420,1176724,1177666,1181158,1184673,1184804,1185377,1185726,1185758,1185973,1186078,1186109,1186390,1186482,1186672,1188062,1188063,1188172,1188563,1188601,1188616,1188838,1188876,1188983,1188985,1189057,1189262,1189291,1189399,1189400,1189706,1189846,1189884,1190023,1190025,1190067,1190115,1190117,1190159,1190276,1190349,1190351,1190479,1190534,1190601,1190717,1191193,1191315,1191317,1191349,1191457,1191628,1191790,1191800,1191888,1191961,1192045,1192267,1192379,1192400,1192775,1192781,1192802
CVE References: CVE-2018-13405,CVE-2018-9517,CVE-2019-3874,CVE-2019-3900,CVE-2020-0429,CVE-2020-12770,CVE-2020-3702,CVE-2020-4788,CVE-2021-0941,CVE-2021-20322,CVE-2021-22543,CVE-2021-31916,CVE-2021-33033,CVE-2021-33909,CVE-2021-34556,CVE-2021-34981,CVE-2021-3542,CVE-2021-35477,CVE-2021-3640,CVE-2021-3653,CVE-2021-3655,CVE-2021-3656,CVE-2021-3659,CVE-2021-3679,CVE-2021-3715,CVE-2021-37159,CVE-2021-3732,CVE-2021-3744,CVE-2021-3752,CVE-2021-3753,CVE-2021-37576,CVE-2021-3759,CVE-2021-3760,CVE-2021-3764,CVE-2021-3772,CVE-2021-38160,CVE-2021-38198,CVE-2021-38204,CVE-2021-40490,CVE-2021-41864,CVE-2021-42008,CVE-2021-42252,CVE-2021-42739
JIRA References: SLE-22573
Sources used:
SUSE Linux Enterprise Server for SAP 15-SP1 (src):    kernel-default-4.12.14-197.102.2, kernel-docs-4.12.14-197.102.2, kernel-obs-build-4.12.14-197.102.1, kernel-source-4.12.14-197.102.2, kernel-syms-4.12.14-197.102.2
SUSE Linux Enterprise Server 15-SP1-LTSS (src):    kernel-default-4.12.14-197.102.2, kernel-docs-4.12.14-197.102.2, kernel-obs-build-4.12.14-197.102.1, kernel-source-4.12.14-197.102.2, kernel-syms-4.12.14-197.102.2, kernel-zfcpdump-4.12.14-197.102.2
SUSE Linux Enterprise Server 15-SP1-BCL (src):    kernel-default-4.12.14-197.102.2, kernel-docs-4.12.14-197.102.2, kernel-obs-build-4.12.14-197.102.1, kernel-source-4.12.14-197.102.2, kernel-syms-4.12.14-197.102.2
SUSE Linux Enterprise Module for Live Patching 15-SP1 (src):    kernel-default-4.12.14-197.102.2, kernel-livepatch-SLE15-SP1_Update_27-1-3.3.1
SUSE Linux Enterprise High Performance Computing 15-SP1-LTSS (src):    kernel-default-4.12.14-197.102.2, kernel-docs-4.12.14-197.102.2, kernel-obs-build-4.12.14-197.102.1, kernel-source-4.12.14-197.102.2, kernel-syms-4.12.14-197.102.2
SUSE Linux Enterprise High Performance Computing 15-SP1-ESPOS (src):    kernel-default-4.12.14-197.102.2, kernel-docs-4.12.14-197.102.2, kernel-obs-build-4.12.14-197.102.1, kernel-source-4.12.14-197.102.2, kernel-syms-4.12.14-197.102.2
SUSE Linux Enterprise High Availability 15-SP1 (src):    kernel-default-4.12.14-197.102.2
SUSE Enterprise Storage 6 (src):    kernel-default-4.12.14-197.102.2, kernel-docs-4.12.14-197.102.2, kernel-obs-build-4.12.14-197.102.1, kernel-source-4.12.14-197.102.2, kernel-syms-4.12.14-197.102.2
SUSE CaaS Platform 4.0 (src):    kernel-default-4.12.14-197.102.2, kernel-docs-4.12.14-197.102.2, kernel-obs-build-4.12.14-197.102.1, kernel-source-4.12.14-197.102.2, kernel-syms-4.12.14-197.102.2

NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.

Comment 30 Swamp Workflow Management 2021-12-02 11:54:13 UTC

SUSE-SU-2021:3877-1: An update that solves four vulnerabilities, contains one feature and has 11 fixes is now available.

Category: security (important)
Bug References: 1114648,1141655,1190523,1191790,1191961,1192045,1192048,1192273,1192718,1192750,1192753,1192781,1192802,1192906,1192987
CVE References: CVE-2021-0941,CVE-2021-20322,CVE-2021-31916,CVE-2021-34981
JIRA References: SLE-22573
Sources used:
SUSE Linux Enterprise Workstation Extension 12-SP5 (src):    kernel-default-4.12.14-122.103.1
SUSE Linux Enterprise Software Development Kit 12-SP5 (src):    kernel-docs-4.12.14-122.103.1, kernel-obs-build-4.12.14-122.103.1
SUSE Linux Enterprise Server 12-SP5 (src):    kernel-default-4.12.14-122.103.1, kernel-source-4.12.14-122.103.1, kernel-syms-4.12.14-122.103.1
SUSE Linux Enterprise Live Patching 12-SP5 (src):    kernel-default-4.12.14-122.103.1, kgraft-patch-SLE12-SP5_Update_26-1-8.5.1
SUSE Linux Enterprise High Availability 12-SP5 (src):    kernel-default-4.12.14-122.103.1

NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.

Comment 32 Swamp Workflow Management 2021-12-06 14:28:47 UTC

SUSE-SU-2021:3933-1: An update that solves 6 vulnerabilities, contains one feature and has 21 fixes is now available.

Category: security (important)
Bug References: 1094840,1133021,1152489,1169263,1170269,1188601,1190523,1190795,1191790,1191851,1191958,1191961,1191980,1192045,1192229,1192273,1192328,1192718,1192740,1192745,1192750,1192753,1192781,1192802,1192896,1192906,1192918
CVE References: CVE-2021-0941,CVE-2021-20322,CVE-2021-31916,CVE-2021-34981,CVE-2021-37159,CVE-2021-43389
JIRA References: SLE-22573
Sources used:
SUSE MicroOS 5.0 (src):    kernel-default-5.3.18-24.96.1, kernel-default-base-5.3.18-24.96.1.9.44.1
SUSE Linux Enterprise Workstation Extension 15-SP2 (src):    kernel-default-5.3.18-24.96.1, kernel-preempt-5.3.18-24.96.1
SUSE Linux Enterprise Module for Live Patching 15-SP2 (src):    kernel-default-5.3.18-24.96.1, kernel-livepatch-SLE15-SP2_Update_22-1-5.3.1
SUSE Linux Enterprise Module for Legacy Software 15-SP2 (src):    kernel-default-5.3.18-24.96.1
SUSE Linux Enterprise Module for Development Tools 15-SP2 (src):    kernel-docs-5.3.18-24.96.1, kernel-obs-build-5.3.18-24.96.1, kernel-preempt-5.3.18-24.96.1, kernel-source-5.3.18-24.96.1, kernel-syms-5.3.18-24.96.1
SUSE Linux Enterprise Module for Basesystem 15-SP2 (src):    kernel-default-5.3.18-24.96.1, kernel-default-base-5.3.18-24.96.1.9.44.1, kernel-preempt-5.3.18-24.96.1, kernel-source-5.3.18-24.96.1
SUSE Linux Enterprise High Availability 15-SP2 (src):    kernel-default-5.3.18-24.96.1

NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.

Comment 33 Swamp Workflow Management 2021-12-06 14:40:59 UTC

SUSE-SU-2021:3929-1: An update that solves 36 vulnerabilities and has 7 fixes is now available.

Category: security (important)
Bug References: 1068032,1087082,1098425,1100416,1119934,1129735,1171217,1171420,1173346,1176724,1183089,1184673,1186109,1186390,1188172,1188325,1188563,1188601,1188838,1188876,1188983,1188985,1189057,1189262,1189291,1189399,1189706,1190023,1190025,1190067,1190117,1190159,1190276,1190349,1190351,1190601,1191193,1191315,1191790,1191958,1191961,1192781,802154
CVE References: CVE-2017-5753,CVE-2018-13405,CVE-2018-16882,CVE-2020-0429,CVE-2020-12655,CVE-2020-14305,CVE-2020-3702,CVE-2021-20265,CVE-2021-20322,CVE-2021-31916,CVE-2021-33033,CVE-2021-34556,CVE-2021-34981,CVE-2021-3542,CVE-2021-35477,CVE-2021-3640,CVE-2021-3653,CVE-2021-3655,CVE-2021-3659,CVE-2021-3679,CVE-2021-3715,CVE-2021-37159,CVE-2021-3732,CVE-2021-3752,CVE-2021-3753,CVE-2021-37576,CVE-2021-3760,CVE-2021-3772,CVE-2021-38160,CVE-2021-38198,CVE-2021-38204,CVE-2021-3896,CVE-2021-40490,CVE-2021-42008,CVE-2021-42739,CVE-2021-43389
JIRA References: 
Sources used:
SUSE Linux Enterprise Server 12-SP2-BCL (src):    kernel-default-4.4.121-92.161.1, kernel-source-4.4.121-92.161.1, kernel-syms-4.4.121-92.161.1

NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.

Comment 34 Swamp Workflow Management 2021-12-06 17:45:55 UTC

openSUSE-SU-2021:3941-1: An update that solves four vulnerabilities, contains one feature and has 21 fixes is now available.

Category: security (important)
Bug References: 1152489,1169263,1170269,1184924,1190523,1190795,1191790,1191961,1192045,1192217,1192273,1192328,1192375,1192473,1192718,1192740,1192745,1192750,1192753,1192758,1192781,1192802,1192896,1192906,1192918
CVE References: CVE-2021-0941,CVE-2021-20322,CVE-2021-31916,CVE-2021-34981
JIRA References: SLE-22573
Sources used:
openSUSE Leap 15.3 (src):    dtb-aarch64-5.3.18-59.37.1, kernel-64kb-5.3.18-59.37.2, kernel-debug-5.3.18-59.37.2, kernel-default-5.3.18-59.37.2, kernel-default-base-5.3.18-59.37.2.18.23.3, kernel-docs-5.3.18-59.37.2, kernel-kvmsmall-5.3.18-59.37.2, kernel-obs-build-5.3.18-59.37.3, kernel-obs-qa-5.3.18-59.37.1, kernel-preempt-5.3.18-59.37.2, kernel-source-5.3.18-59.37.2, kernel-syms-5.3.18-59.37.1, kernel-zfcpdump-5.3.18-59.37.2

Comment 35 Swamp Workflow Management 2021-12-06 17:59:10 UTC

SUSE-SU-2021:3941-1: An update that solves four vulnerabilities, contains one feature and has 21 fixes is now available.

Category: security (important)
Bug References: 1152489,1169263,1170269,1184924,1190523,1190795,1191790,1191961,1192045,1192217,1192273,1192328,1192375,1192473,1192718,1192740,1192745,1192750,1192753,1192758,1192781,1192802,1192896,1192906,1192918
CVE References: CVE-2021-0941,CVE-2021-20322,CVE-2021-31916,CVE-2021-34981
JIRA References: SLE-22573
Sources used:
SUSE MicroOS 5.1 (src):    kernel-default-5.3.18-59.37.2, kernel-default-base-5.3.18-59.37.2.18.23.3
SUSE Linux Enterprise Workstation Extension 15-SP3 (src):    kernel-default-5.3.18-59.37.2, kernel-preempt-5.3.18-59.37.2
SUSE Linux Enterprise Module for Live Patching 15-SP3 (src):    kernel-default-5.3.18-59.37.2, kernel-livepatch-SLE15-SP3_Update_10-1-7.3.2
SUSE Linux Enterprise Module for Legacy Software 15-SP3 (src):    kernel-default-5.3.18-59.37.2
SUSE Linux Enterprise Module for Development Tools 15-SP3 (src):    kernel-docs-5.3.18-59.37.2, kernel-obs-build-5.3.18-59.37.3, kernel-preempt-5.3.18-59.37.2, kernel-source-5.3.18-59.37.2, kernel-syms-5.3.18-59.37.1
SUSE Linux Enterprise Module for Basesystem 15-SP3 (src):    kernel-64kb-5.3.18-59.37.2, kernel-default-5.3.18-59.37.2, kernel-default-base-5.3.18-59.37.2.18.23.3, kernel-preempt-5.3.18-59.37.2, kernel-source-5.3.18-59.37.2, kernel-zfcpdump-5.3.18-59.37.2
SUSE Linux Enterprise High Availability 15-SP3 (src):    kernel-default-5.3.18-59.37.2

NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.

Comment 36 Swamp Workflow Management 2021-12-06 18:18:28 UTC

SUSE-SU-2021:3935-1: An update that solves 38 vulnerabilities and has 18 fixes is now available.

Category: security (important)
Bug References: 1073928,1098425,1100416,1119934,1129735,1171217,1171420,1173346,1176724,1177666,1181158,1181854,1181855,1183089,1184673,1185726,1185727,1185758,1185973,1186109,1186390,1188172,1188563,1188601,1188838,1188876,1188983,1188985,1189057,1189262,1189278,1189291,1189399,1189420,1189706,1190022,1190023,1190025,1190067,1190117,1190159,1190194,1190349,1190351,1190601,1190717,1191193,1191315,1191790,1191801,1191958,1191961,1192267,1192400,1192775,1192781
CVE References: CVE-2017-17862,CVE-2017-17864,CVE-2018-13405,CVE-2018-16882,CVE-2020-0429,CVE-2020-12655,CVE-2020-14305,CVE-2020-3702,CVE-2020-4788,CVE-2021-20265,CVE-2021-20322,CVE-2021-31916,CVE-2021-33033,CVE-2021-34556,CVE-2021-34981,CVE-2021-3542,CVE-2021-35477,CVE-2021-3640,CVE-2021-3653,CVE-2021-3655,CVE-2021-3659,CVE-2021-3679,CVE-2021-3715,CVE-2021-37159,CVE-2021-3732,CVE-2021-3752,CVE-2021-3753,CVE-2021-37576,CVE-2021-3760,CVE-2021-3772,CVE-2021-38160,CVE-2021-38198,CVE-2021-38204,CVE-2021-3896,CVE-2021-40490,CVE-2021-42008,CVE-2021-42739,CVE-2021-43389
JIRA References: 
Sources used:
SUSE OpenStack Cloud Crowbar 8 (src):    kernel-default-4.4.180-94.150.1, kernel-source-4.4.180-94.150.1, kernel-syms-4.4.180-94.150.1, kgraft-patch-SLE12-SP3_Update_41-1-4.3.1
SUSE OpenStack Cloud 8 (src):    kernel-default-4.4.180-94.150.1, kernel-source-4.4.180-94.150.1, kernel-syms-4.4.180-94.150.1, kgraft-patch-SLE12-SP3_Update_41-1-4.3.1
SUSE Linux Enterprise Server for SAP 12-SP3 (src):    kernel-default-4.4.180-94.150.1, kernel-source-4.4.180-94.150.1, kernel-syms-4.4.180-94.150.1, kgraft-patch-SLE12-SP3_Update_41-1-4.3.1
SUSE Linux Enterprise Server 12-SP3-LTSS (src):    kernel-default-4.4.180-94.150.1, kernel-source-4.4.180-94.150.1, kernel-syms-4.4.180-94.150.1, kgraft-patch-SLE12-SP3_Update_41-1-4.3.1
SUSE Linux Enterprise Server 12-SP3-BCL (src):    kernel-default-4.4.180-94.150.1, kernel-source-4.4.180-94.150.1, kernel-syms-4.4.180-94.150.1
SUSE Linux Enterprise High Availability 12-SP3 (src):    kernel-default-4.4.180-94.150.1
HPE Helion Openstack 8 (src):    kernel-default-4.4.180-94.150.1, kernel-source-4.4.180-94.150.1, kernel-syms-4.4.180-94.150.1, kgraft-patch-SLE12-SP3_Update_41-1-4.3.1

NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.

Comment 37 Swamp Workflow Management 2021-12-07 20:26:59 UTC

SUSE-SU-2021:3969-1: An update that solves 37 vulnerabilities and has 21 fixes is now available.

Category: security (important)
Bug References: 1085235,1085308,1087078,1087082,1100394,1102640,1105412,1108488,1129898,1133374,1171420,1173489,1174161,1181854,1184804,1185377,1185726,1185758,1186109,1186482,1188172,1188563,1188601,1188838,1188876,1188983,1188985,1189057,1189262,1189291,1189399,1189400,1189706,1189846,1189884,1190023,1190025,1190067,1190117,1190159,1190351,1190479,1190534,1190601,1190717,1191193,1191315,1191317,1191790,1191800,1191961,1192045,1192267,1192379,1192400,1192775,1192781,1192802
CVE References: CVE-2018-3639,CVE-2018-9517,CVE-2019-3874,CVE-2019-3900,CVE-2020-12770,CVE-2020-3702,CVE-2021-0941,CVE-2021-20320,CVE-2021-20322,CVE-2021-22543,CVE-2021-31916,CVE-2021-33033,CVE-2021-34556,CVE-2021-34981,CVE-2021-35477,CVE-2021-3640,CVE-2021-3653,CVE-2021-3655,CVE-2021-3656,CVE-2021-3659,CVE-2021-3679,CVE-2021-37159,CVE-2021-3732,CVE-2021-3744,CVE-2021-3752,CVE-2021-3753,CVE-2021-37576,CVE-2021-3760,CVE-2021-3764,CVE-2021-3772,CVE-2021-38160,CVE-2021-38198,CVE-2021-38204,CVE-2021-40490,CVE-2021-41864,CVE-2021-42008,CVE-2021-42252
JIRA References: 
Sources used:
SUSE Linux Enterprise Server for SAP 15 (src):    kernel-default-4.12.14-150.78.1, kernel-docs-4.12.14-150.78.2, kernel-obs-build-4.12.14-150.78.2, kernel-source-4.12.14-150.78.1, kernel-syms-4.12.14-150.78.1, kernel-vanilla-4.12.14-150.78.1
SUSE Linux Enterprise Server 15-LTSS (src):    kernel-default-4.12.14-150.78.1, kernel-docs-4.12.14-150.78.2, kernel-obs-build-4.12.14-150.78.2, kernel-source-4.12.14-150.78.1, kernel-syms-4.12.14-150.78.1, kernel-vanilla-4.12.14-150.78.1, kernel-zfcpdump-4.12.14-150.78.1
SUSE Linux Enterprise Module for Live Patching 15 (src):    kernel-default-4.12.14-150.78.1, kernel-livepatch-SLE15_Update_26-1-1.3.1
SUSE Linux Enterprise High Performance Computing 15-LTSS (src):    kernel-default-4.12.14-150.78.1, kernel-docs-4.12.14-150.78.2, kernel-obs-build-4.12.14-150.78.2, kernel-source-4.12.14-150.78.1, kernel-syms-4.12.14-150.78.1, kernel-vanilla-4.12.14-150.78.1
SUSE Linux Enterprise High Performance Computing 15-ESPOS (src):    kernel-default-4.12.14-150.78.1, kernel-docs-4.12.14-150.78.2, kernel-obs-build-4.12.14-150.78.2, kernel-source-4.12.14-150.78.1, kernel-syms-4.12.14-150.78.1, kernel-vanilla-4.12.14-150.78.1
SUSE Linux Enterprise High Availability 15 (src):    kernel-default-4.12.14-150.78.1

NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.

Comment 38 Swamp Workflow Management 2021-12-08 14:27:33 UTC

SUSE-SU-2021:3972-1: An update that solves 40 vulnerabilities and has 47 fixes is now available.

Category: security (important)
Bug References: 1087082,1100416,1108488,1129735,1129898,1133374,1153720,1171420,1176724,1176931,1180624,1181854,1181855,1183050,1183861,1184673,1184804,1185377,1185677,1185726,1185727,1185758,1185973,1186063,1186482,1186483,1186672,1188026,1188172,1188563,1188601,1188613,1188838,1188842,1188876,1188983,1188985,1189057,1189262,1189278,1189291,1189399,1189400,1189418,1189420,1189706,1189846,1189884,1190023,1190025,1190067,1190115,1190117,1190118,1190159,1190276,1190349,1190350,1190351,1190432,1190479,1190534,1190601,1190717,1191193,1191315,1191317,1191318,1191529,1191530,1191628,1191660,1191790,1191801,1191813,1191961,1192036,1192045,1192048,1192267,1192379,1192400,1192444,1192549,1192775,1192781,1192802
CVE References: CVE-2018-13405,CVE-2018-9517,CVE-2019-3874,CVE-2019-3900,CVE-2020-0429,CVE-2020-12770,CVE-2020-3702,CVE-2021-0941,CVE-2021-20322,CVE-2021-22543,CVE-2021-31916,CVE-2021-34556,CVE-2021-34981,CVE-2021-3542,CVE-2021-35477,CVE-2021-3640,CVE-2021-3653,CVE-2021-3655,CVE-2021-3656,CVE-2021-3659,CVE-2021-3679,CVE-2021-3715,CVE-2021-37159,CVE-2021-3732,CVE-2021-3744,CVE-2021-3752,CVE-2021-3753,CVE-2021-37576,CVE-2021-3759,CVE-2021-3760,CVE-2021-3764,CVE-2021-3772,CVE-2021-38160,CVE-2021-38198,CVE-2021-38204,CVE-2021-40490,CVE-2021-41864,CVE-2021-42008,CVE-2021-42252,CVE-2021-42739
JIRA References: 
Sources used:
SUSE OpenStack Cloud Crowbar 9 (src):    kernel-default-4.12.14-95.83.2, kernel-source-4.12.14-95.83.2, kernel-syms-4.12.14-95.83.2
SUSE OpenStack Cloud 9 (src):    kernel-default-4.12.14-95.83.2, kernel-source-4.12.14-95.83.2, kernel-syms-4.12.14-95.83.2
SUSE Linux Enterprise Server for SAP 12-SP4 (src):    kernel-default-4.12.14-95.83.2, kernel-source-4.12.14-95.83.2, kernel-syms-4.12.14-95.83.2
SUSE Linux Enterprise Server 12-SP4-LTSS (src):    kernel-default-4.12.14-95.83.2, kernel-source-4.12.14-95.83.2, kernel-syms-4.12.14-95.83.2
SUSE Linux Enterprise Live Patching 12-SP4 (src):    kernel-default-4.12.14-95.83.2, kgraft-patch-SLE12-SP4_Update_23-1-6.3.1
SUSE Linux Enterprise High Availability 12-SP4 (src):    kernel-default-4.12.14-95.83.2

NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.

Comment 39 Swamp Workflow Management 2021-12-09 14:18:03 UTC

SUSE-SU-2021:3978-1: An update that solves 7 vulnerabilities, contains one feature and has 27 fixes is now available.

Category: security (important)
Bug References: 1094840,1133021,1152489,1153275,1169263,1169514,1170269,1176940,1179599,1188601,1190523,1190795,1191790,1191851,1191958,1191961,1191980,1192045,1192229,1192273,1192328,1192718,1192740,1192745,1192750,1192753,1192781,1192802,1192896,1192906,1192918,1192987,1192998,1193002
CVE References: CVE-2020-27820,CVE-2021-0941,CVE-2021-20322,CVE-2021-31916,CVE-2021-34981,CVE-2021-37159,CVE-2021-43389
JIRA References: SLE-22573
Sources used:
SUSE MicroOS 5.0 (src):    kernel-rt-5.3.18-62.2
SUSE Linux Enterprise Module for Realtime 15-SP2 (src):    kernel-rt-5.3.18-62.2, kernel-rt_debug-5.3.18-62.3, kernel-source-rt-5.3.18-62.3, kernel-syms-rt-5.3.18-62.1

NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.

Comment 40 Swamp Workflow Management 2021-12-09 20:27:46 UTC

SUSE-SU-2021:3979-1: An update that solves four vulnerabilities, contains one feature and has 23 fixes is now available.

Category: security (important)
Bug References: 1152489,1169263,1170269,1184924,1190523,1190795,1191790,1191961,1192045,1192217,1192273,1192328,1192375,1192473,1192691,1192718,1192740,1192745,1192750,1192753,1192758,1192781,1192802,1192874,1192896,1192906,1192918
CVE References: CVE-2021-0941,CVE-2021-20322,CVE-2021-31916,CVE-2021-34981
JIRA References: SLE-22573
Sources used:
SUSE MicroOS 5.1 (src):    kernel-rt-5.3.18-65.2
SUSE Linux Enterprise Module for Realtime 15-SP3 (src):    kernel-rt-5.3.18-65.2, kernel-rt_debug-5.3.18-65.2, kernel-source-rt-5.3.18-65.2, kernel-syms-rt-5.3.18-65.1

NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.

Comment 41 Swamp Workflow Management 2021-12-10 14:46:37 UTC

SUSE-SU-2021:3992-1: An update that solves four vulnerabilities, contains one feature and has 15 fixes is now available.

Category: security (important)
Bug References: 1114648,1141655,1169514,1190317,1190523,1191790,1191876,1191961,1192045,1192048,1192273,1192718,1192750,1192753,1192781,1192802,1192866,1192906,1192987
CVE References: CVE-2021-0941,CVE-2021-20322,CVE-2021-31916,CVE-2021-34981
JIRA References: SLE-22573
Sources used:
SUSE Linux Enterprise Real Time Extension 12-SP5 (src):    kernel-rt-4.12.14-10.70.2, kernel-rt_debug-4.12.14-10.70.2, kernel-source-rt-4.12.14-10.70.2, kernel-syms-rt-4.12.14-10.70.2

NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.

Comment 44 Takashi Iwai 2022-05-27 16:19:59 UTC

Jiri, any news on this (regarding ipv6)?

Comment 45 Jiri Bohac 2022-06-01 16:36:20 UTC

(In reply to Jiri Bohac from comment #4)
> 
> (In reply to Gianluca Gabrielli from comment #1)
> > Affected branches:
> >  - cve/linux-4.4
> >  - cve/linux-4.12
> >  - SLE12-SP5
> 
> SLE12-SP5 will merge from cve/linux-4.12
> For both cve branches I backported the two IPv4 patches.
> 
> For IPv6 the hashed dst cache has been implemented by 
> commit 35732d01fe311ec13c4e42936878b782b8e7ea85 ("ipv6: introduce a hash
> table to store dst cache"), that is v4.15.
> 
> Since I don't know the details of the attack, I can't tell if the FIB
> implementation present in these older kernels is vulnerable to the attack in
> the same way as the newer dst hash.
> 
> So for now I left the IPv6 parts out. Let's wait until we have more details
> about the attack.

IPv6 is not vulnerable in kernels prior to v4.15. 
Source: the updated paper, mentioned under Publications on 	https://www.saddns.net/:

	DNS Cache Poisoning Attack: Resurrections with Side Channels
	Keyu Man, Xin'an Zhou, Zhiyun Qian
	In Proceedings of ACM Conference on Computer and Communications Security (CCS`21), November 15-19, 2021, Virtual Event, Republic of Korea.
	https://dl.acm.org/doi/pdf/10.1145/3460120.3486219

section "5.1 Conditions of Successful Attacks", it is stated that 
	Linux some time until 4.15 to port the same exception cache to IPv6.
	Therefore, IPv6 redirect attacks, which only require

Comment 46 Jiri Bohac 2022-06-01 16:39:36 UTC

> section "5.1 Conditions of Successful Attacks", it is stated that 
>	Linux some time until 4.15 to port the same exception cache to IPv6.
>	Therefore, IPv6 redirect attacks, which only require 

[somehow Bugzilla truncated my Comment 45, the truncated part follows]

        ...

Comment 47 Jiri Bohac 2022-06-01 16:45:34 UTC

[trying again, apparently the text "C1 and C2" pasted from the PDF is not standard ASCII and this breaks bugzilla; this is the text in hex:  2e 2e2e f09d 90b6 3126 f09d 90b6 32; rewritten to ASCII below]

        ...C1 & C2 to work,
	are only exploitable on kernel versions newer than 4.15.

... and summarized in "Table 1: Exploitability of Different DNS Software and Kernel Versions"

So nothing to be done for the IPv6 parts left out earlier, closing as FIXED.

Comment 49 Marcus Meissner 2023-01-16 14:16:25 UTC

done