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AUSCERT External Security Bulletin Redistribution
ESB-2021.3967
Security update for the Linux Kernel (Live Patch 0, 5, 7, 10
for SLE 15 SP3)
22 November 2021
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: Linux Kernel
Publisher: SUSE
Operating System: SUSE
Impact/Access: Increased Privileges -- Existing Account
Denial of Service -- Existing Account
Access Confidential Data -- Existing Account
Reduced Security -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2021-41864 CVE-2021-34866 CVE-2021-3752
Reference: ESB-2021.3938
ESB-2021.3927
ESB-2021.3872
ESB-2021.3867
Original Bulletin:
https://www.suse.com/support/update/announcement/2021/suse-su-20213742-1
https://www.suse.com/support/update/announcement/2021/suse-su-20213743-1
https://www.suse.com/support/update/announcement/2021/suse-su-20213738-1
https://www.suse.com/support/update/announcement/2021/suse-su-20213737-1
Comment: This bulletin contains four (4) SUSE security advisories.
- --------------------------BEGIN INCLUDED TEXT--------------------
SUSE Security Update: Security update for the Linux Kernel (Live
______________________________________________________________________________
Announcement ID: SUSE-SU-2021:3742-1
Rating: important
References: #1191318 #1191646
Cross-References: CVE-2021-34866 CVE-2021-41864
Affected Products:
SUSE Linux Enterprise Module for Live Patching 15-SP3
______________________________________________________________________________
Patch 5 for
SLE 15 SP3)
An update that fixes two vulnerabilities is now available.
Description:
This update for the Linux Kernel 5.3.18-59_19 fixes several issues.
The following security issues were fixed:
o CVE-2021-34866: Fixed possible eBPF Type Confusion privilege escalation
vulnerability via eBPF type confusion (bsc#1191646).
o CVE-2021-41864: Fixed an integer overflow with a resultant out-of-bounds
write in prealloc_elems_and_freelist in kernel/bpf/stackmap.c (bsc#
1191318).
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 Module for Live Patching 15-SP3:
zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP3-2021-3739=1
SUSE-SLE-Module-Live-Patching-15-SP3-2021-3740=1
SUSE-SLE-Module-Live-Patching-15-SP3-2021-3741=1
SUSE-SLE-Module-Live-Patching-15-SP3-2021-3742=1
Package List:
o SUSE Linux Enterprise Module for Live Patching 15-SP3 (ppc64le s390x
x86_64):
kernel-livepatch-5_3_18-59_10-default-6-2.2
kernel-livepatch-5_3_18-59_10-default-debuginfo-6-2.2
kernel-livepatch-5_3_18-59_16-default-5-2.2
kernel-livepatch-5_3_18-59_16-default-debuginfo-5-2.2
kernel-livepatch-5_3_18-59_19-default-4-2.2
kernel-livepatch-5_3_18-59_19-default-debuginfo-4-2.2
kernel-livepatch-5_3_18-59_5-default-6-2.2
kernel-livepatch-5_3_18-59_5-default-debuginfo-6-2.2
kernel-livepatch-SLE15-SP3_Update_1-debugsource-6-2.2
kernel-livepatch-SLE15-SP3_Update_2-debugsource-6-2.2
kernel-livepatch-SLE15-SP3_Update_4-debugsource-5-2.2
kernel-livepatch-SLE15-SP3_Update_5-debugsource-4-2.2
References:
o https://www.suse.com/security/cve/CVE-2021-34866.html
o https://www.suse.com/security/cve/CVE-2021-41864.html
o https://bugzilla.suse.com/1191318
o https://bugzilla.suse.com/1191646
- -----------------------------------------------------------------------------------------------------
SUSE Security Update: Security update for the Linux Kernel (Live
______________________________________________________________________________
Announcement ID: SUSE-SU-2021:3743-1
Rating: important
References: #1191318
Cross-References: CVE-2021-41864
Affected Products:
SUSE Linux Enterprise Module for Live Patching 15-SP3
SUSE Linux Enterprise Module for Live Patching 15-SP2
______________________________________________________________________________
Patch 7 for
SLE 15 SP3)
An update that fixes one vulnerability is now available.
Description:
This update for the Linux Kernel 5.3.18-59_27 fixes one issue.
The following security issue was fixed:
o CVE-2021-41864: Fixed an integer overflow with a resultant out-of-bounds
write in prealloc_elems_and_freelist in kernel/bpf/stackmap.c (bsc#
1191318).
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 Module for Live Patching 15-SP3:
zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP3-2021-3743=1
o SUSE Linux Enterprise Module for Live Patching 15-SP2:
zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP2-2021-3744=1
Package List:
o SUSE Linux Enterprise Module for Live Patching 15-SP3 (ppc64le s390x
x86_64):
kernel-livepatch-5_3_18-59_27-default-2-2.2
o SUSE Linux Enterprise Module for Live Patching 15-SP2 (ppc64le s390x
x86_64):
kernel-livepatch-5_3_18-24_86-default-2-2.3
kernel-livepatch-5_3_18-24_86-default-debuginfo-2-2.3
kernel-livepatch-SLE15-SP2_Update_20-debugsource-2-2.3
References:
o https://www.suse.com/security/cve/CVE-2021-41864.html
o https://bugzilla.suse.com/1191318
- -----------------------------------------------------------------------------------------------------
SUSE Security Update: Security update for the Linux Kernel (Live
______________________________________________________________________________
Announcement ID: SUSE-SU-2021:3738-1
Rating: important
References: #1190432 #1191318 #1191646
Cross-References: CVE-2021-34866 CVE-2021-3752 CVE-2021-41864
Affected Products:
SUSE Linux Enterprise Module for Live Patching 15-SP3
______________________________________________________________________________
Patch 0 for
SLE 15 SP3)
An update that fixes three vulnerabilities is now available.
Description:
This update for the Linux Kernel 5.3.18-57 fixes several issues.
The following security issues were fixed:
o CVE-2021-3752: Fixed vulnerability in the linux kernel Bluetooth uaf module
(bsc#1190432).
o CVE-2021-34866: Fixed possible eBPF Type Confusion privilege escalation
vulnerability via eBPF type confusion (bsc#1191646).
o CVE-2021-41864: Fixed an integer overflow with a resultant out-of-bounds
write in prealloc_elems_and_freelist in kernel/bpf/stackmap.c (bsc#
1191318).
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 Module for Live Patching 15-SP3:
zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP3-2021-3738=1
Package List:
o SUSE Linux Enterprise Module for Live Patching 15-SP3 (ppc64le s390x
x86_64):
kernel-livepatch-5_3_18-57-default-8-3.2
kernel-livepatch-5_3_18-57-default-debuginfo-8-3.2
kernel-livepatch-SLE15-SP3_Update_0-debugsource-8-3.2
References:
o https://www.suse.com/security/cve/CVE-2021-34866.html
o https://www.suse.com/security/cve/CVE-2021-3752.html
o https://www.suse.com/security/cve/CVE-2021-41864.html
o https://bugzilla.suse.com/1190432
o https://bugzilla.suse.com/1191318
o https://bugzilla.suse.com/1191646
- -----------------------------------------------------------------------------------------------------
SUSE Security Update: Security update for the Linux Kernel (Live Patch 10 for
SLE 15 SP2)
______________________________________________________________________________
Announcement ID: SUSE-SU-2021:3737-1
Rating: important
References: #1190432 #1191318
Cross-References: CVE-2021-3752 CVE-2021-41864
Affected Products:
SUSE Linux Enterprise Module for Live Patching 15-SP2
______________________________________________________________________________
An update that fixes two vulnerabilities is now available.
Description:
This update for the Linux Kernel 5.3.18-24_49 fixes several issues.
The following security issues were fixed:
o CVE-2021-3752: Fixed vulnerability in the linux kernel Bluetooth uaf module
(bsc#1190432).
o CVE-2021-41864: Fixed an integer overflow with a resultant out-of-bounds
write in prealloc_elems_and_freelist in kernel/bpf/stackmap.c (bsc#
1191318).
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 Module for Live Patching 15-SP2:
zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP2-2021-3737=1
Package List:
o SUSE Linux Enterprise Module for Live Patching 15-SP2 (ppc64le s390x
x86_64):
kernel-livepatch-5_3_18-24_49-default-12-2.2
kernel-livepatch-5_3_18-24_49-default-debuginfo-12-2.2
kernel-livepatch-SLE15-SP2_Update_10-debugsource-12-2.2
References:
o https://www.suse.com/security/cve/CVE-2021-3752.html
o https://www.suse.com/security/cve/CVE-2021-41864.html
o https://bugzilla.suse.com/1190432
o https://bugzilla.suse.com/1191318
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The University of Queensland
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