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SUSE-SU-2022:0668-1

Опубликовано: 02 мар. 2022
Источник: suse-cvrf

Описание

Security update for the Linux Kernel (Live Patch 42 for SLE 12 SP3)

This update for the Linux Kernel 4.4.180-94_153 fixes several issues.

The following security issues were fixed:

  • CVE-2021-0920: Fixed a local privilege escalation due to an use after free bug in unix_gc (bsc#1194463).
  • CVE-2021-28688: Fixed XSA-365 that includes initialization of pointers such that subsequent cleanup code wouldn't use uninitialized or stale values. This initialization went too far and may under certain conditions also overwrite pointers which are in need of cleaning up. The lack of cleanup would result in leaking persistent grants. The leak in turn would prevent fully cleaning up after a respective guest has died, leaving around zombie domains (bsc#1182294).

Список пакетов

SUSE Linux Enterprise Server 12 SP3-LTSS
kgraft-patch-4_4_180-94_153-default-2-2.1
SUSE Linux Enterprise Server for SAP Applications 12 SP3
kgraft-patch-4_4_180-94_153-default-2-2.1

Ссылки

Описание

In unix_scm_to_skb of af_unix.c, there is a possible use after free bug due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-196926917References: Upstream kernel

Затронутые продукты
SUSE Linux Enterprise Server 12 SP3-LTSS:kgraft-patch-4_4_180-94_153-default-2-2.1
SUSE Linux Enterprise Server for SAP Applications 12 SP3:kgraft-patch-4_4_180-94_153-default-2-2.1
Ссылки

Описание

The fix for XSA-365 includes initialization of pointers such that subsequent cleanup code wouldn't use uninitialized or stale values. This initialization went too far and may under certain conditions also overwrite pointers which are in need of cleaning up. The lack of cleanup would result in leaking persistent grants. The leak in turn would prevent fully cleaning up after a respective guest has died, leaving around zombie domains. All Linux versions having the fix for XSA-365 applied are vulnerable. XSA-365 was classified to affect versions back to at least 3.11.

Затронутые продукты
SUSE Linux Enterprise Server 12 SP3-LTSS:kgraft-patch-4_4_180-94_153-default-2-2.1
SUSE Linux Enterprise Server for SAP Applications 12 SP3:kgraft-patch-4_4_180-94_153-default-2-2.1
Ссылки