Bug 1156326 (CVE-2019-12526) - VUL-0: CVE-2019-12526: squid,squid3: possible remote code execution attack when processing URN
Summary: VUL-0: CVE-2019-12526: squid,squid3: possible remote code execution attack wh...
Status: RESOLVED FIXED
Alias: CVE-2019-12526
Product: SUSE Security Incidents
Classification: Novell Products
Component: Incidents (show other bugs)
Version: unspecified
Hardware: Other Other
: P3 - Medium : Normal
Target Milestone: ---
Assignee: Security Team bot
QA Contact: Security Team bot
URL: https://smash.suse.de/issue/246783/
Whiteboard: CVSSv3.1:SUSE:CVE-2019-12526:8.1:(AV...
Keywords:
Depends on:
Blocks:
 
Reported: 2019-11-08 15:34 UTC by Robert Frohl
Modified: 2024-12-18 15:51 UTC (History)
2 users (show)

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


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Description Robert Frohl 2019-11-08 15:34:12 UTC
Problem Description:

 Due to incorrect buffer management Squid is vulnerable to a
 heap overflow and possible remote code execution attack when
 processing URN.

__________________________________________________________________

Severity:

 This allows a malicious client to write a substantial amount of
 arbitrary data to the heap. Potentially gaining ability to
 execute arbitrary code.

 On systems with memory access protections this can result in
 the Squid process being terminated unexpectedly. Resulting in a
 denial of service for all clients using the proxy.

__________________________________________________________________

Updated Packages:

 This bug is fixed by Squid version 4.9.

 In addition, patches addressing this problem for the stable
 releases can be found in our patch archives:

Squid 4:
 <http://www.squid-cache.org/Versions/v4/changesets/squid-4-7aa0184a720fd216191474e079f4fe87de7c4f5a.patch>

 If you are using a prepackaged version of Squid then please refer
 to the package vendor for availability information on updated
 packages.

__________________________________________________________________

Determining if your version is vulnerable:

 All Squid-2.x are not vulnerable.
 All Squid-3.x up to and including 3.5.28 are vulnerable.
 All Squid-4.x up to and including 4.8 are vulnerable.

__________________________________________________________________

Workarounds:

 Deny urn: protocol URI being proxied to all clients:

    acl URN proto URN
    http_access deny URN


http://www.squid-cache.org/Advisories/SQUID-2019_7.txt
Comment 1 Swamp Workflow Management 2019-11-08 17:00:18 UTC
This is an autogenerated message for OBS integration:
This bug (1156326) was mentioned in
https://build.opensuse.org/request/show/746661 Factory / squid
Comment 3 Swamp Workflow Management 2019-11-14 20:15:13 UTC
SUSE-SU-2019:2975-1: An update that fixes 12 vulnerabilities is now available.

Category: security (important)
Bug References: 1133089,1140738,1141329,1141330,1141332,1141442,1156323,1156324,1156326,1156328,1156329
CVE References: CVE-2019-12523,CVE-2019-12525,CVE-2019-12526,CVE-2019-12527,CVE-2019-12529,CVE-2019-12854,CVE-2019-13345,CVE-2019-18676,CVE-2019-18677,CVE-2019-18678,CVE-2019-18679,CVE-2019-3688
Sources used:
SUSE Linux Enterprise Module for Server Applications 15-SP1 (src):    squid-4.9-5.11.1
SUSE Linux Enterprise Module for Server Applications 15 (src):    squid-4.9-5.11.1

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 4 Swamp Workflow Management 2019-11-21 17:18:04 UTC
openSUSE-SU-2019:2540-1: An update that fixes 12 vulnerabilities is now available.

Category: security (important)
Bug References: 1133089,1140738,1141329,1141330,1141332,1141442,1156323,1156324,1156326,1156328,1156329
CVE References: CVE-2019-12523,CVE-2019-12525,CVE-2019-12526,CVE-2019-12527,CVE-2019-12529,CVE-2019-12854,CVE-2019-13345,CVE-2019-18676,CVE-2019-18677,CVE-2019-18678,CVE-2019-18679,CVE-2019-3688
Sources used:
openSUSE Leap 15.0 (src):    squid-4.9-lp150.13.1
Comment 5 Swamp Workflow Management 2019-11-21 17:21:06 UTC
openSUSE-SU-2019:2541-1: An update that fixes 12 vulnerabilities is now available.

Category: security (important)
Bug References: 1133089,1140738,1141329,1141330,1141332,1141442,1156323,1156324,1156326,1156328,1156329
CVE References: CVE-2019-12523,CVE-2019-12525,CVE-2019-12526,CVE-2019-12527,CVE-2019-12529,CVE-2019-12854,CVE-2019-13345,CVE-2019-18676,CVE-2019-18677,CVE-2019-18678,CVE-2019-18679,CVE-2019-3688
Sources used:
openSUSE Leap 15.1 (src):    squid-4.9-lp151.2.7.1
Comment 6 Swamp Workflow Management 2019-11-26 14:13:32 UTC
SUSE-SU-2019:3067-1: An update that fixes 7 vulnerabilities is now available.

Category: security (important)
Bug References: 1140738,1156323,1156324,1156326,1156328,1156329
CVE References: CVE-2019-12523,CVE-2019-12526,CVE-2019-13345,CVE-2019-18676,CVE-2019-18677,CVE-2019-18678,CVE-2019-18679
Sources used:
SUSE Linux Enterprise Server 12-SP5 (src):    squid-4.9-4.3.2

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 8 Swamp Workflow Management 2020-03-12 20:19:56 UTC
SUSE-SU-2020:0661-1: An update that fixes 10 vulnerabilities is now available.

Category: security (important)
Bug References: 1156323,1156324,1156326,1156328,1156329,1162687,1162689,1162691
CVE References: CVE-2019-12523,CVE-2019-12526,CVE-2019-12528,CVE-2019-18676,CVE-2019-18677,CVE-2019-18678,CVE-2019-18679,CVE-2020-8449,CVE-2020-8450,CVE-2020-8517
Sources used:
SUSE OpenStack Cloud Crowbar 8 (src):    squid-3.5.21-26.20.1
SUSE OpenStack Cloud 8 (src):    squid-3.5.21-26.20.1
SUSE OpenStack Cloud 7 (src):    squid-3.5.21-26.20.1
SUSE Linux Enterprise Server for SAP 12-SP3 (src):    squid-3.5.21-26.20.1
SUSE Linux Enterprise Server for SAP 12-SP2 (src):    squid-3.5.21-26.20.1
SUSE Linux Enterprise Server 12-SP4 (src):    squid-3.5.21-26.20.1
SUSE Linux Enterprise Server 12-SP3-LTSS (src):    squid-3.5.21-26.20.1
SUSE Linux Enterprise Server 12-SP3-BCL (src):    squid-3.5.21-26.20.1
SUSE Linux Enterprise Server 12-SP2-LTSS (src):    squid-3.5.21-26.20.1
SUSE Linux Enterprise Server 12-SP2-BCL (src):    squid-3.5.21-26.20.1
SUSE Enterprise Storage 5 (src):    squid-3.5.21-26.20.1
HPE Helion Openstack 8 (src):    squid-3.5.21-26.20.1

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 Swamp Workflow Management 2020-08-24 16:14:04 UTC
SUSE-SU-2020:14460-1: An update that fixes 21 vulnerabilities is now available.

Category: security (important)
Bug References: 1140738,1141329,1141332,1156323,1156324,1156326,1156328,1156329,1162687,1162689,1162691,1167373,1169659,1170313,1170423,1173304,1173455
CVE References: CVE-2019-12519,CVE-2019-12520,CVE-2019-12521,CVE-2019-12523,CVE-2019-12524,CVE-2019-12525,CVE-2019-12526,CVE-2019-12528,CVE-2019-12529,CVE-2019-13345,CVE-2019-18676,CVE-2019-18677,CVE-2019-18678,CVE-2019-18679,CVE-2019-18860,CVE-2020-11945,CVE-2020-14059,CVE-2020-15049,CVE-2020-8449,CVE-2020-8450,CVE-2020-8517
JIRA References: 
Sources used:
SUSE Linux Enterprise Server 11-SP4-LTSS (src):    squid3-3.1.23-8.16.37.12.1
SUSE Linux Enterprise Point of Sale 11-SP3 (src):    squid3-3.1.23-8.16.37.12.1
SUSE Linux Enterprise Debuginfo 11-SP4 (src):    squid3-3.1.23-8.16.37.12.1

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.