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Sicherheit: Mehrere Probleme in Linux (Live Patch 21 SLE 15 SP1)
Aktuelle Meldungen Distributionen
Name: Mehrere Probleme in Linux (Live Patch 21 SLE 15 SP1)
ID: SUSE-SU-2021:2542-1
Distribution: SUSE
Plattformen: SUSE Linux Enterprise Module for Live Patching 15-SP1, SUSE Linux Enterprise Module for Live Patching 15-SP2
Datum: Do, 29. Juli 2021, 00:04
Referenzen: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-36385
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-33909
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-22555
Applikationen: Linux

Originalnachricht


SUSE Security Update: Security update for the Linux Kernel (Live Patch 21
for SLE 15 SP1)
______________________________________________________________________________

Announcement ID: SUSE-SU-2021:2542-1
Rating: important
References: #1187052 #1188117 #1188257
Cross-References: CVE-2020-36385 CVE-2021-22555 CVE-2021-33909

CVSS scores:
CVE-2020-36385 (NVD) : 7.8
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVE-2020-36385 (SUSE): 8.4
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVE-2021-22555 (NVD) : 7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVE-2021-22555 (SUSE): 7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVE-2021-33909 (SUSE): 7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Products:
SUSE Linux Enterprise Module for Live Patching 15-SP2
SUSE Linux Enterprise Module for Live Patching 15-SP1
______________________________________________________________________________

An update that fixes three vulnerabilities is now available.

Description:

This update for the Linux Kernel 4.12.14-197_78 fixes several issues.

The following security issues were fixed:

- CVE-2021-33909: Fixed an out-of-bounds write in the filesystem layer
that allows to andobtain full root privileges. (bsc#1188062)
- CVE-2021-22555: Fixed an heap out-of-bounds write in
net/netfilter/x_tables.c that could allow local provilege escalation.
(bsc#1188116)
- CVE-2020-36385: Fixed a use-after-free vulnerability reached via the
ctx_list in some ucma_migrate_id situations where ucma_close is called.
(bnc#1187050)


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:

- SUSE Linux Enterprise Module for Live Patching 15-SP2:

zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP2-2021-2542=1
SUSE-SLE-Module-Live-Patching-15-SP2-2021-2543=1 SUSE-SLE-Module-Live-Patching-15-SP2-2021-2544=1

- SUSE Linux Enterprise Module for Live Patching 15-SP1:

zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP1-2021-2541=1



Package List:

- SUSE Linux Enterprise Module for Live Patching 15-SP2 (ppc64le s390x
x86_64):

kernel-livepatch-5_3_18-24_43-default-9-2.2
kernel-livepatch-5_3_18-24_43-default-debuginfo-9-2.2
kernel-livepatch-5_3_18-24_46-default-9-2.2
kernel-livepatch-5_3_18-24_46-default-debuginfo-9-2.2
kernel-livepatch-5_3_18-24_49-default-8-2.2
kernel-livepatch-5_3_18-24_49-default-debuginfo-8-2.2
kernel-livepatch-SLE15-SP2_Update_10-debugsource-8-2.2
kernel-livepatch-SLE15-SP2_Update_8-debugsource-9-2.2
kernel-livepatch-SLE15-SP2_Update_9-debugsource-9-2.2

- SUSE Linux Enterprise Module for Live Patching 15-SP1 (ppc64le x86_64):

kernel-livepatch-4_12_14-197_78-default-9-2.2


References:

https://www.suse.com/security/cve/CVE-2020-36385.html
https://www.suse.com/security/cve/CVE-2021-22555.html
https://www.suse.com/security/cve/CVE-2021-33909.html
https://bugzilla.suse.com/1187052
https://bugzilla.suse.com/1188117
https://bugzilla.suse.com/1188257
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