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SUSE-SU-2021:2026-1

Опубликовано: 18 июн. 2021
Источник: suse-cvrf

Описание

Security update for the Linux Kernel (Live Patch 39 for SLE 12 SP3)

This update for the Linux Kernel 4.4.180-94_144 fixes several issues.

The following issues were fixed:

  • CVE-2021-33034: Fixed a use-after-free when destroying an hci_chan. This could lead to writing an arbitrary values (bsc#1186111).
  • CVE-2021-28688: Fixed an issue introduced by XSA-365, leaving around zombie domains after xen guest has died (bsc#1183646).
  • CVE-2020-0429: In l2tp_session_delete and related functions of l2tp_core.c, there is possible memory corruption due to a use after free. This could lead to local escalation of privilege with system execution privileges needed. (bsc#1176724).
  • Fixed a regression with the last livepatch which caused a kernel warning during sysfs read (bsc#1186235).

Список пакетов

SUSE Linux Enterprise Server 12 SP3-LTSS
kgraft-patch-4_4_180-94_144-default-2-2.1
SUSE Linux Enterprise Server for SAP Applications 12 SP3
kgraft-patch-4_4_180-94_144-default-2-2.1

Ссылки

Описание

In l2tp_session_delete and related functions of l2tp_core.c, there is possible memory corruption due to a use after free. 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-152735806

Затронутые продукты
SUSE Linux Enterprise Server 12 SP3-LTSS:kgraft-patch-4_4_180-94_144-default-2-2.1
SUSE Linux Enterprise Server for SAP Applications 12 SP3:kgraft-patch-4_4_180-94_144-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_144-default-2-2.1
SUSE Linux Enterprise Server for SAP Applications 12 SP3:kgraft-patch-4_4_180-94_144-default-2-2.1
Ссылки

Описание

In the Linux kernel before 5.12.4, net/bluetooth/hci_event.c has a use-after-free when destroying an hci_chan, aka CID-5c4c8c954409. This leads to writing an arbitrary value.

Затронутые продукты
SUSE Linux Enterprise Server 12 SP3-LTSS:kgraft-patch-4_4_180-94_144-default-2-2.1
SUSE Linux Enterprise Server for SAP Applications 12 SP3:kgraft-patch-4_4_180-94_144-default-2-2.1
Ссылки
Уязвимость SUSE-SU-2021:2026-1