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Sicherheit: Mehrere Probleme in Linux (Live Patch 16 SLE 12 SP4)
Aktuelle Meldungen Distributionen
Name: Mehrere Probleme in Linux (Live Patch 16 SLE 12 SP4)
ID: SUSE-SU-2021:0823-1
Distribution: SUSE
Plattformen: SUSE Linux Enterprise Live Patching 12-SP4
Datum: Mi, 17. März 2021, 23:42
Referenzen: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-29368
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3347
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27786
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-28374
Applikationen: Linux

Originalnachricht


SUSE Security Update: Security update for the Linux Kernel (Live Patch 16
for SLE 12 SP4)
______________________________________________________________________________

Announcement ID: SUSE-SU-2021:0823-1
Rating: important
References: #1178684 #1179616 #1179664 #1181553 #1182108
#1182468
Cross-References: CVE-2020-27786 CVE-2020-28374 CVE-2020-29368
CVE-2021-3347
CVSS scores:
CVE-2020-27786 (NVD) : 7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVE-2020-27786 (SUSE): 7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVE-2020-28374 (NVD) : 8.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CVE-2020-28374 (SUSE): 8.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CVE-2020-29368 (NVD) : 7
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVE-2020-29368 (SUSE): 7
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVE-2021-3347 (NVD) : 7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVE-2021-3347 (SUSE): 8.4
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Products:
SUSE Linux Enterprise Live Patching 12-SP4
______________________________________________________________________________

An update that solves four vulnerabilities and has two
fixes is now available.

Description:

This update for the Linux Kernel 4.12.14-95_60 fixes several issues.

The following security issues were fixed:

- CVE-2020-29368: Fixed an issue in copy-on-write implementation which
could have granted unintended write access because of a race condition
in a THP mapcount check (bsc#1179664).
- Fixed an issue where NFS client filesystems got unmounted on fail-over
(bsc#1182468).
- Fixed an issue where NFS client hanged on write errors (bsc#1182108).
- CVE-2021-3347: Fixed a use-after-free in the PI futexes during fault
handling, allowing local users to execute code in the kernel
(bsc#1181553).
- CVE-2020-27786: Fixed a potential user after free which could have led
to memory corruption or privilege escalation (bsc#1179616).
- CVE-2020-28374: Fixed insufficient identifier checking in the LIO SCSI
target code which could have been used by remote attackers to read or
write files via directory traversal in an XCOPY request (bsc#1178684).


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 Live Patching 12-SP4:

zypper in -t patch SUSE-SLE-Live-Patching-12-SP4-2021-823=1
SUSE-SLE-Live-Patching-12-SP4-2021-824=1 SUSE-SLE-Live-Patching-12-SP4-2021-825=1



Package List:

- SUSE Linux Enterprise Live Patching 12-SP4 (ppc64le s390x x86_64):

kgraft-patch-4_12_14-95_54-default-7-2.2
kgraft-patch-4_12_14-95_57-default-7-2.2
kgraft-patch-4_12_14-95_60-default-6-2.2


References:

https://www.suse.com/security/cve/CVE-2020-27786.html
https://www.suse.com/security/cve/CVE-2020-28374.html
https://www.suse.com/security/cve/CVE-2020-29368.html
https://www.suse.com/security/cve/CVE-2021-3347.html
https://bugzilla.suse.com/1178684
https://bugzilla.suse.com/1179616
https://bugzilla.suse.com/1179664
https://bugzilla.suse.com/1181553
https://bugzilla.suse.com/1182108
https://bugzilla.suse.com/1182468
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