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AUSCERT External Security Bulletin Redistribution
ESB-2021.1212
Security update for the Linux Kernel (Live Patch 36 for SLE 12 SP2)
13 April 2021
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: Linux Kernel
Publisher: SUSE
Operating System: SUSE
Impact/Access: Execute Arbitrary Code/Commands -- Existing Account
Increased Privileges -- Existing Account
Denial of Service -- Existing Account
Access Confidential Data -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2021-27365 CVE-2021-27364 CVE-2021-27363
CVE-2020-25645 CVE-2020-1749 CVE-2020-0429
Reference: ESB-2021.1159
ESB-2021.1152
ESB-2021.0955
Original Bulletin:
https://www.suse.com/support/update/announcement/2021/suse-su-20211145-1
https://www.suse.com/support/update/announcement/2021/suse-su-20211148-1
Comment: This bulletin contains two (2) SUSE security advisories.
- --------------------------BEGIN INCLUDED TEXT--------------------
SUSE Security Update: Security update for the Linux Kernel (Live Patch 36 for
SLE 12 SP2)
______________________________________________________________________________
Announcement ID: SUSE-SU-2021:1145-1
Rating: important
References: #1182717 #1183120 #1183491
Cross-References: CVE-2021-27363 CVE-2021-27364 CVE-2021-27365
Affected Products:
SUSE Linux Enterprise Server 12-SP2-LTSS-SAP
SUSE Linux Enterprise Server 12-SP2-LTSS-ERICSSON
______________________________________________________________________________
An update that fixes three vulnerabilities is now available.
Description:
This update for the Linux Kernel 4.4.121-92_138 fixes several issues.
The following security issues were fixed:
o CVE-2021-27365: Fixed an issue where data structures did not have
appropriate length constraints or checks, and could exceed the PAGE_SIZE
value (bsc#1183491).
o CVE-2021-27363: Fixed a kernel pointer leak which could have been used to
determine the address of the iscsi_transport structure (bsc#1183120).
o CVE-2021-27364: Fixed an issue where an unprivileged user could craft
Netlink messages (bsc#1182717).
Patch Instructions:
To install this SUSE Security Update use the SUSE recommended installation
methods like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:
o SUSE Linux Enterprise Server 12-SP2-LTSS-SAP:
zypper in -t patch SUSE-SLE-SERVER-12-SP2-LTSS-SAP-2021-1142=1
SUSE-SLE-SERVER-12-SP2-LTSS-SAP-2021-1143=1
SUSE-SLE-SERVER-12-SP2-LTSS-SAP-2021-1144=1
SUSE-SLE-SERVER-12-SP2-LTSS-SAP-2021-1145=1
SUSE-SLE-SERVER-12-SP2-LTSS-SAP-2021-1146=1
SUSE-SLE-SERVER-12-SP2-LTSS-SAP-2021-1147=1
o SUSE Linux Enterprise Server 12-SP2-LTSS-ERICSSON:
zypper in -t patch SUSE-SLE-SERVER-12-SP2-LTSS-ERICSSON-2021-1142=1
SUSE-SLE-SERVER-12-SP2-LTSS-ERICSSON-2021-1143=1
SUSE-SLE-SERVER-12-SP2-LTSS-ERICSSON-2021-1144=1
SUSE-SLE-SERVER-12-SP2-LTSS-ERICSSON-2021-1145=1
SUSE-SLE-SERVER-12-SP2-LTSS-ERICSSON-2021-1146=1
SUSE-SLE-SERVER-12-SP2-LTSS-ERICSSON-2021-1147=1
Package List:
o SUSE Linux Enterprise Server 12-SP2-LTSS-SAP (x86_64):
kgraft-patch-4_4_121-92_129-default-10-2.2
kgraft-patch-4_4_121-92_135-default-8-2.2
kgraft-patch-4_4_121-92_138-default-8-2.2
kgraft-patch-4_4_121-92_141-default-7-2.2
kgraft-patch-4_4_121-92_146-default-5-2.2
kgraft-patch-4_4_121-92_149-default-3-2.2
o SUSE Linux Enterprise Server 12-SP2-LTSS-ERICSSON (x86_64):
kgraft-patch-4_4_121-92_129-default-10-2.2
kgraft-patch-4_4_121-92_135-default-8-2.2
kgraft-patch-4_4_121-92_138-default-8-2.2
kgraft-patch-4_4_121-92_141-default-7-2.2
kgraft-patch-4_4_121-92_146-default-5-2.2
kgraft-patch-4_4_121-92_149-default-3-2.2
References:
o https://www.suse.com/security/cve/CVE-2021-27363.html
o https://www.suse.com/security/cve/CVE-2021-27364.html
o https://www.suse.com/security/cve/CVE-2021-27365.html
o https://bugzilla.suse.com/1182717
o https://bugzilla.suse.com/1183120
o https://bugzilla.suse.com/1183491
- --------------------------------------------------------------------------------
SUSE Security Update: Security update for the Linux Kernel (Live Patch 40 for
SLE 12 SP2)
______________________________________________________________________________
Announcement ID: SUSE-SU-2021:1148-1
Rating: important
References: #1165631 #1176931 #1177513 #1182717 #1183120 #1183491
Cross-References: CVE-2020-0429 CVE-2020-1749 CVE-2020-25645 CVE-2021-27363
CVE-2021-27364 CVE-2021-27365
Affected Products:
SUSE Linux Enterprise Server 12-SP2-LTSS-SAP
SUSE Linux Enterprise Server 12-SP2-LTSS-ERICSSON
______________________________________________________________________________
An update that fixes 6 vulnerabilities is now available.
Description:
This update for the Linux Kernel 4.4.121-92_152 fixes several issues.
The following security issues were fixed:
o CVE-2021-27365: Fixed an issue where data structures did not have
appropriate length constraints or checks, and could exceed the PAGE_SIZE
value (bsc#1183491).
o CVE-2021-27363: Fixed a kernel pointer leak which could have been used to
determine the address of the iscsi_transport structure (bsc#1183120).
o CVE-2021-27364: Fixed an issue where an unprivileged user could craft
Netlink messages (bsc#1182717).
o CVE-2020-25645: Fixed an an issue in IPsec that caused traffic between two
Geneve endpoints to be unencrypted (bsc#1177513).
o CVE-2020-0429: Fixed a memory corruption due to a use after free which
could have led to local escalation of privilege with System execution
privileges needed (bsc#1176931).
o CVE-2020-1749: Use ip6_dst_lookup_flow instead of ip6_dst_lookup (bsc#
1165631).
Patch Instructions:
To install this SUSE Security Update use the SUSE recommended installation
methods like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:
o SUSE Linux Enterprise Server 12-SP2-LTSS-SAP:
zypper in -t patch SUSE-SLE-SERVER-12-SP2-LTSS-SAP-2021-1148=1
o SUSE Linux Enterprise Server 12-SP2-LTSS-ERICSSON:
zypper in -t patch SUSE-SLE-SERVER-12-SP2-LTSS-ERICSSON-2021-1148=1
Package List:
o SUSE Linux Enterprise Server 12-SP2-LTSS-SAP (x86_64):
kgraft-patch-4_4_121-92_152-default-2-2.2
o SUSE Linux Enterprise Server 12-SP2-LTSS-ERICSSON (x86_64):
kgraft-patch-4_4_121-92_152-default-2-2.2
References:
o https://www.suse.com/security/cve/CVE-2020-0429.html
o https://www.suse.com/security/cve/CVE-2020-1749.html
o https://www.suse.com/security/cve/CVE-2020-25645.html
o https://www.suse.com/security/cve/CVE-2021-27363.html
o https://www.suse.com/security/cve/CVE-2021-27364.html
o https://www.suse.com/security/cve/CVE-2021-27365.html
o https://bugzilla.suse.com/1165631
o https://bugzilla.suse.com/1176931
o https://bugzilla.suse.com/1177513
o https://bugzilla.suse.com/1182717
o https://bugzilla.suse.com/1183120
o https://bugzilla.suse.com/1183491
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===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
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