Bug 1214727 (CVE-2023-4563)

Summary:	VUL-0: CVE-2023-4563: kernel: use-after-free in nft_verdict_dump due to a race between set GC and transaction
Product:	[Novell Products] SUSE Security Incidents	Reporter:	Robert Frohl <rfrohl>
Component:	Incidents	Assignee:	Michal Kubeček <mkubecek>
Status:	IN_PROGRESS ---	QA Contact:	Security Team bot <security-team>
Severity:	Normal
Priority:	P3 - Medium	CC:	jack, meissner, mhocko, security-team
Version:	unspecified
Target Milestone:	---
Hardware:	Other
OS:	Other
URL:	https://smash.suse.de/issue/376555/
See Also:	https://bugzilla.suse.com/show_bug.cgi?id=1215420
Whiteboard:	CVSSv3.1:SUSE:CVE-2023-4563:0.0:(AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:N)
Found By:	Security Response Team	Services Priority:
Business Priority:		Blocker:	---
Marketing QA Status:	---	IT Deployment:	---

Description Robert Frohl 2023-08-29 07:00:51 UTC

CVE-2023-4563

A use-after-free flaw was found in nftables sub-component due to a race problem between set GC and transaction in the Linux Kernel. This flaw could allow a local attacker to crash the system, due to missing call to to `nft_set_elem_mark_busy` causing double deactivation of the element. This vulnerability could even lead to a kernel information leak problem.

Refer:
https://lore.kernel.org/netdev/20230810070830.24064-1-pablo@netfilter.org/
https://lore.kernel.org/netdev/20230815223011.7019-1-fw@strlen.de/

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-4563
https://bugzilla.redhat.com/show_bug.cgi?id=2235306

Comment 3 Michal Kubeček 2023-09-04 15:29:02 UTC

The mailing list links make little sense, they seem to be pull requests
from nf (netfilter git repository) to net (networking git repository) and
consist of various unrelated patches.

AFAICS patch 7/9 from the first link seems to be the best fit for the
(vague) issue description; this is now in mainline since 6.5-rc7 as commit
6a33d8b73dfa ("netfilter: nf_tables: fix GC transaction races with netns
and netlink event exit path").

The trouble is that it's a fix for an omission in commit 5f68718b34a5
("netfilter: nf_tables: GC transaction API to avoid race with control plane")
which reached mainline in 6.5-rc6 and has not been backported into any
of our branches except SLE15-SP6 and ALP-current which have both.

In other words, there is nothing to do for the CVE as reported; but it would
make sense to backport the fix the older race (and therefore introduce the
CVE issue first) and then fix it, together with other follow-up fixes for
commit 5f68718b34a5.

The only problem from kABI point of view is commit 5f68718b34a5 adding new
member refs into struct nft_set. Luckily, this structure consists of two
parts divided into two cachelines using ____cacheline_aligned attribute
so that there is a good chance we could have a hole large enough for
refcount_t. But this is something that needs to be checked for all affected
branches (everything based on 4.4 through 5.14) and probably also for all
architectures (member sizes should be the same on all 64-bit architectures
but cacheline size may not).

Comment 9 Maintenance Automation 2023-09-14 12:31:13 UTC

SUSE-SU-2023:3599-1: An update that solves 20 vulnerabilities, contains eight features and has 53 security fixes can now be installed.

Category: security (important)
Bug References: 1023051, 1120059, 1177719, 1188885, 1193629, 1194869, 1203329, 1203330, 1205462, 1206453, 1208902, 1208949, 1209284, 1209799, 1210048, 1210448, 1211220, 1212091, 1212142, 1212423, 1212526, 1212857, 1212873, 1213026, 1213123, 1213546, 1213580, 1213601, 1213666, 1213733, 1213757, 1213759, 1213916, 1213921, 1213927, 1213946, 1213949, 1213968, 1213970, 1213971, 1214000, 1214019, 1214073, 1214120, 1214149, 1214180, 1214233, 1214238, 1214285, 1214297, 1214299, 1214305, 1214350, 1214368, 1214370, 1214371, 1214372, 1214380, 1214386, 1214392, 1214393, 1214397, 1214404, 1214428, 1214451, 1214659, 1214661, 1214727, 1214729, 1214742, 1214743, 1214756, 1214976
CVE References: CVE-2022-38457, CVE-2022-40133, CVE-2023-2007, CVE-2023-20588, CVE-2023-34319, CVE-2023-3610, CVE-2023-37453, CVE-2023-3772, CVE-2023-3863, CVE-2023-40283, CVE-2023-4128, CVE-2023-4133, CVE-2023-4134, CVE-2023-4147, CVE-2023-4194, CVE-2023-4273, CVE-2023-4387, CVE-2023-4459, CVE-2023-4563, CVE-2023-4569
Jira References: PED-3924, PED-4579, PED-4759, PED-4927, PED-4929, PED-5738, PED-6003, PED-6004
Sources used:
openSUSE Leap 15.5 (src): kernel-syms-rt-5.14.21-150500.13.14.1, kernel-livepatch-SLE15-SP5-RT_Update_4-1-150500.11.3.1, kernel-source-rt-5.14.21-150500.13.14.1
SUSE Linux Enterprise Live Patching 15-SP5 (src): kernel-livepatch-SLE15-SP5-RT_Update_4-1-150500.11.3.1
SUSE Real Time Module 15-SP5 (src): kernel-syms-rt-5.14.21-150500.13.14.1, kernel-source-rt-5.14.21-150500.13.14.1

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 10 Maintenance Automation 2023-09-18 16:30:35 UTC

SUSE-SU-2023:3656-1: An update that solves 20 vulnerabilities, contains eight features and has 54 security fixes can now be installed.

Category: security (important)
Bug References: 1023051, 1120059, 1177719, 1188885, 1193629, 1194869, 1203329, 1203330, 1205462, 1206453, 1208902, 1208949, 1209284, 1209799, 1210048, 1210448, 1211220, 1212091, 1212142, 1212423, 1212526, 1212857, 1212873, 1213026, 1213123, 1213546, 1213580, 1213601, 1213666, 1213733, 1213757, 1213759, 1213916, 1213921, 1213927, 1213946, 1213949, 1213968, 1213970, 1213971, 1214000, 1214019, 1214073, 1214120, 1214149, 1214180, 1214233, 1214238, 1214285, 1214297, 1214299, 1214305, 1214350, 1214368, 1214370, 1214371, 1214372, 1214380, 1214386, 1214392, 1214393, 1214397, 1214404, 1214428, 1214451, 1214659, 1214661, 1214727, 1214729, 1214742, 1214743, 1214756, 1214760, 1214976
CVE References: CVE-2022-38457, CVE-2022-40133, CVE-2023-2007, CVE-2023-20588, CVE-2023-34319, CVE-2023-3610, CVE-2023-37453, CVE-2023-3772, CVE-2023-3863, CVE-2023-40283, CVE-2023-4128, CVE-2023-4133, CVE-2023-4134, CVE-2023-4147, CVE-2023-4194, CVE-2023-4273, CVE-2023-4387, CVE-2023-4459, CVE-2023-4563, CVE-2023-4569
Jira References: PED-3924, PED-4579, PED-4759, PED-4927, PED-4929, PED-5738, PED-6003, PED-6004
Sources used:
openSUSE Leap 15.5 (src): kernel-source-azure-5.14.21-150500.33.17.1, kernel-syms-azure-5.14.21-150500.33.17.1
Public Cloud Module 15-SP5 (src): kernel-source-azure-5.14.21-150500.33.17.1, kernel-syms-azure-5.14.21-150500.33.17.1

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 11 Maintenance Automation 2023-09-20 12:30:34 UTC

SUSE-SU-2023:3704-1: An update that solves 20 vulnerabilities, contains eight features and has 53 security fixes can now be installed.

Category: security (important)
Bug References: 1023051, 1120059, 1177719, 1188885, 1193629, 1194869, 1203329, 1203330, 1205462, 1206453, 1208902, 1208949, 1209284, 1209799, 1210048, 1210448, 1211220, 1212091, 1212142, 1212423, 1212526, 1212857, 1212873, 1213026, 1213123, 1213546, 1213580, 1213601, 1213666, 1213733, 1213757, 1213759, 1213916, 1213921, 1213927, 1213946, 1213949, 1213968, 1213970, 1213971, 1214000, 1214019, 1214073, 1214120, 1214149, 1214180, 1214233, 1214238, 1214285, 1214297, 1214299, 1214305, 1214350, 1214368, 1214370, 1214371, 1214372, 1214380, 1214386, 1214392, 1214393, 1214397, 1214404, 1214428, 1214451, 1214659, 1214661, 1214727, 1214729, 1214742, 1214743, 1214756, 1214976
CVE References: CVE-2022-38457, CVE-2022-40133, CVE-2023-2007, CVE-2023-20588, CVE-2023-34319, CVE-2023-3610, CVE-2023-37453, CVE-2023-3772, CVE-2023-3863, CVE-2023-40283, CVE-2023-4128, CVE-2023-4133, CVE-2023-4134, CVE-2023-4147, CVE-2023-4194, CVE-2023-4273, CVE-2023-4387, CVE-2023-4459, CVE-2023-4563, CVE-2023-4569
Jira References: PED-3924, PED-4579, PED-4759, PED-4927, PED-4929, PED-5738, PED-6003, PED-6004
Sources used:
openSUSE Leap 15.5 (src): kernel-livepatch-SLE15-SP5_Update_4-1-150500.11.3.1, kernel-obs-build-5.14.21-150500.55.22.1, kernel-syms-5.14.21-150500.55.22.1, kernel-obs-qa-5.14.21-150500.55.22.1, kernel-source-5.14.21-150500.55.22.1, kernel-default-base-5.14.21-150500.55.22.1.150500.6.8.1
Basesystem Module 15-SP5 (src): kernel-source-5.14.21-150500.55.22.1, kernel-default-base-5.14.21-150500.55.22.1.150500.6.8.1
Development Tools Module 15-SP5 (src): kernel-syms-5.14.21-150500.55.22.1, kernel-obs-build-5.14.21-150500.55.22.1, kernel-source-5.14.21-150500.55.22.1
SUSE Linux Enterprise Live Patching 15-SP5 (src): kernel-livepatch-SLE15-SP5_Update_4-1-150500.11.3.1

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 12 Maintenance Automation 2023-09-21 12:30:22 UTC

SUSE-SU-2023:3599-2: An update that solves 20 vulnerabilities, contains eight features and has 53 security fixes can now be installed.

Category: security (important)
Bug References: 1023051, 1120059, 1177719, 1188885, 1193629, 1194869, 1203329, 1203330, 1205462, 1206453, 1208902, 1208949, 1209284, 1209799, 1210048, 1210448, 1211220, 1212091, 1212142, 1212423, 1212526, 1212857, 1212873, 1213026, 1213123, 1213546, 1213580, 1213601, 1213666, 1213733, 1213757, 1213759, 1213916, 1213921, 1213927, 1213946, 1213949, 1213968, 1213970, 1213971, 1214000, 1214019, 1214073, 1214120, 1214149, 1214180, 1214233, 1214238, 1214285, 1214297, 1214299, 1214305, 1214350, 1214368, 1214370, 1214371, 1214372, 1214380, 1214386, 1214392, 1214393, 1214397, 1214404, 1214428, 1214451, 1214659, 1214661, 1214727, 1214729, 1214742, 1214743, 1214756, 1214976
CVE References: CVE-2022-38457, CVE-2022-40133, CVE-2023-2007, CVE-2023-20588, CVE-2023-34319, CVE-2023-3610, CVE-2023-37453, CVE-2023-3772, CVE-2023-3863, CVE-2023-40283, CVE-2023-4128, CVE-2023-4133, CVE-2023-4134, CVE-2023-4147, CVE-2023-4194, CVE-2023-4273, CVE-2023-4387, CVE-2023-4459, CVE-2023-4563, CVE-2023-4569
Jira References: PED-3924, PED-4579, PED-4759, PED-4927, PED-4929, PED-5738, PED-6003, PED-6004
Sources used:
openSUSE Leap 15.5 (src): kernel-syms-rt-5.14.21-150500.13.14.1, kernel-source-rt-5.14.21-150500.13.14.1, kernel-livepatch-SLE15-SP5-RT_Update_4-1-150500.11.3.1
SUSE Linux Enterprise Live Patching 15-SP5 (src): kernel-livepatch-SLE15-SP5-RT_Update_4-1-150500.11.3.1
SUSE Real Time Module 15-SP5 (src): kernel-syms-rt-5.14.21-150500.13.14.1, kernel-source-rt-5.14.21-150500.13.14.1

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 13 Maintenance Automation 2023-09-21 12:31:13 UTC

SUSE-SU-2023:3704-2: An update that solves 20 vulnerabilities, contains eight features and has 53 security fixes can now be installed.

Category: security (important)
Bug References: 1023051, 1120059, 1177719, 1188885, 1193629, 1194869, 1203329, 1203330, 1205462, 1206453, 1208902, 1208949, 1209284, 1209799, 1210048, 1210448, 1211220, 1212091, 1212142, 1212423, 1212526, 1212857, 1212873, 1213026, 1213123, 1213546, 1213580, 1213601, 1213666, 1213733, 1213757, 1213759, 1213916, 1213921, 1213927, 1213946, 1213949, 1213968, 1213970, 1213971, 1214000, 1214019, 1214073, 1214120, 1214149, 1214180, 1214233, 1214238, 1214285, 1214297, 1214299, 1214305, 1214350, 1214368, 1214370, 1214371, 1214372, 1214380, 1214386, 1214392, 1214393, 1214397, 1214404, 1214428, 1214451, 1214659, 1214661, 1214727, 1214729, 1214742, 1214743, 1214756, 1214976
CVE References: CVE-2022-38457, CVE-2022-40133, CVE-2023-2007, CVE-2023-20588, CVE-2023-34319, CVE-2023-3610, CVE-2023-37453, CVE-2023-3772, CVE-2023-3863, CVE-2023-40283, CVE-2023-4128, CVE-2023-4133, CVE-2023-4134, CVE-2023-4147, CVE-2023-4194, CVE-2023-4273, CVE-2023-4387, CVE-2023-4459, CVE-2023-4563, CVE-2023-4569
Jira References: PED-3924, PED-4579, PED-4759, PED-4927, PED-4929, PED-5738, PED-6003, PED-6004
Sources used:
openSUSE Leap 15.5 (src): kernel-livepatch-SLE15-SP5_Update_4-1-150500.11.3.1, kernel-obs-build-5.14.21-150500.55.22.1, kernel-syms-5.14.21-150500.55.22.1, kernel-obs-qa-5.14.21-150500.55.22.1, kernel-source-5.14.21-150500.55.22.1, kernel-default-base-5.14.21-150500.55.22.1.150500.6.8.1
Basesystem Module 15-SP5 (src): kernel-source-5.14.21-150500.55.22.1, kernel-default-base-5.14.21-150500.55.22.1.150500.6.8.1
Development Tools Module 15-SP5 (src): kernel-syms-5.14.21-150500.55.22.1, kernel-obs-build-5.14.21-150500.55.22.1, kernel-source-5.14.21-150500.55.22.1
SUSE Linux Enterprise Live Patching 15-SP5 (src): kernel-livepatch-SLE15-SP5_Update_4-1-150500.11.3.1

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 14 Maintenance Automation 2023-10-04 16:30:25 UTC

SUSE-SU-2023:3971-1: An update that solves 20 vulnerabilities, contains eight features and has 58 security fixes can now be installed.

Category: security (important)
Bug References: 1023051, 1120059, 1177719, 1188885, 1193629, 1194869, 1203329, 1203330, 1205462, 1206453, 1208902, 1208949, 1209284, 1209799, 1210048, 1210448, 1211220, 1212091, 1212142, 1212423, 1212526, 1212857, 1212873, 1213026, 1213123, 1213546, 1213580, 1213601, 1213666, 1213733, 1213757, 1213759, 1213916, 1213921, 1213927, 1213946, 1213949, 1213968, 1213970, 1213971, 1214000, 1214019, 1214073, 1214120, 1214149, 1214180, 1214233, 1214238, 1214285, 1214297, 1214299, 1214305, 1214350, 1214368, 1214370, 1214371, 1214372, 1214380, 1214386, 1214392, 1214393, 1214397, 1214404, 1214428, 1214451, 1214635, 1214659, 1214661, 1214727, 1214729, 1214742, 1214743, 1214756, 1214976, 1215522, 1215523, 1215552, 1215553
CVE References: CVE-2022-38457, CVE-2022-40133, CVE-2023-2007, CVE-2023-20588, CVE-2023-34319, CVE-2023-3610, CVE-2023-37453, CVE-2023-3772, CVE-2023-3863, CVE-2023-40283, CVE-2023-4128, CVE-2023-4133, CVE-2023-4134, CVE-2023-4147, CVE-2023-4194, CVE-2023-4273, CVE-2023-4387, CVE-2023-4459, CVE-2023-4563, CVE-2023-4569
Jira References: PED-3924, PED-4579, PED-4759, PED-4927, PED-4929, PED-5738, PED-6003, PED-6004
Sources used:
openSUSE Leap 15.5 (src): kernel-obs-build-5.14.21-150500.55.28.1, kernel-obs-qa-5.14.21-150500.55.28.1, kernel-syms-5.14.21-150500.55.28.1, kernel-source-5.14.21-150500.55.28.1, kernel-default-base-5.14.21-150500.55.28.1.150500.6.11.2, kernel-livepatch-SLE15-SP5_Update_5-1-150500.11.5.1
SUSE Linux Enterprise Micro 5.5 (src): kernel-default-base-5.14.21-150500.55.28.1.150500.6.11.2
Basesystem Module 15-SP5 (src): kernel-default-base-5.14.21-150500.55.28.1.150500.6.11.2, kernel-source-5.14.21-150500.55.28.1
Development Tools Module 15-SP5 (src): kernel-obs-build-5.14.21-150500.55.28.1, kernel-syms-5.14.21-150500.55.28.1, kernel-source-5.14.21-150500.55.28.1
SUSE Linux Enterprise Live Patching 15-SP5 (src): kernel-livepatch-SLE15-SP5_Update_5-1-150500.11.5.1

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 16 Maintenance Automation 2023-10-05 16:29:27 UTC

SUSE-SU-2023:3988-1: An update that solves 24 vulnerabilities, contains 10 features and has 64 security fixes can now be installed.

Category: security (important)
Bug References: 1023051, 1065729, 1120059, 1177719, 1187236, 1188885, 1193629, 1194869, 1203329, 1203330, 1205462, 1206453, 1208902, 1208949, 1208995, 1209284, 1209799, 1210048, 1210169, 1210448, 1210643, 1211220, 1212091, 1212142, 1212423, 1212526, 1212857, 1212873, 1213026, 1213123, 1213546, 1213580, 1213601, 1213666, 1213733, 1213757, 1213759, 1213916, 1213921, 1213927, 1213946, 1213949, 1213968, 1213970, 1213971, 1214000, 1214019, 1214073, 1214120, 1214149, 1214180, 1214233, 1214238, 1214285, 1214297, 1214299, 1214305, 1214350, 1214368, 1214370, 1214371, 1214372, 1214380, 1214386, 1214392, 1214393, 1214397, 1214404, 1214428, 1214451, 1214635, 1214659, 1214661, 1214727, 1214729, 1214742, 1214743, 1214756, 1214813, 1214873, 1214928, 1214976, 1214988, 1215123, 1215124, 1215148, 1215221, 1215523
CVE References: CVE-2022-38457, CVE-2022-40133, CVE-2023-1192, CVE-2023-1859, CVE-2023-2007, CVE-2023-20588, CVE-2023-2177, CVE-2023-34319, CVE-2023-3610, CVE-2023-37453, CVE-2023-3772, CVE-2023-3863, CVE-2023-40283, CVE-2023-4128, CVE-2023-4133, CVE-2023-4134, CVE-2023-4147, CVE-2023-4194, CVE-2023-4273, CVE-2023-4387, CVE-2023-4459, CVE-2023-4563, CVE-2023-4569, CVE-2023-4881
Jira References: PED-2023, PED-2025, PED-3924, PED-4579, PED-4759, PED-4927, PED-4929, PED-5738, PED-6003, PED-6004
Sources used:
SUSE Real Time Module 15-SP5 (src): kernel-syms-rt-5.14.21-150500.13.18.1, kernel-source-rt-5.14.21-150500.13.18.1
openSUSE Leap 15.5 (src): kernel-syms-rt-5.14.21-150500.13.18.1, kernel-livepatch-SLE15-SP5-RT_Update_5-1-150500.11.3.1, kernel-source-rt-5.14.21-150500.13.18.1
SUSE Linux Enterprise Live Patching 15-SP5 (src): kernel-livepatch-SLE15-SP5-RT_Update_5-1-150500.11.3.1

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 25 Jan Kara 2024-01-30 13:57:42 UTC

AFAICT this has been backported to SLE15-SP6, SLE15-SP5 and SLE15-SP4 branches. Still missing in cve/linux-5.3 and cve/linux-4.4 branches. Michal, any chance to have a look?