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SUSE-SU-2019:3260-1

Опубликовано: 11 дек. 2019
Источник: suse-cvrf

Описание

Security update for the Linux Kernel (Live Patch 29 for SLE 12 SP2)

This update for the Linux Kernel 4.4.121-92_109 fixes several issues.

The following security issues were fixed:

  • CVE-2018-20856: Fixed a use-after-free in __blk_drain_queue() due to an improper error handling (bsc#1156331).
  • CVE-2019-13272: Fixed a privilege escalation from user to root due to improper handling of credentials by leveraging certain scenarios with a parent-child process relationship (bsc#1156321).
  • CVE-2019-10220: Fixed an issue where samba servers could inject relative paths in directory entry lists (bsc#1153108).

Список пакетов

SUSE Linux Enterprise Server 12 SP2-LTSS
kgraft-patch-4_4_121-92_104-default-7-2.5
kgraft-patch-4_4_121-92_109-default-7-2.5
SUSE Linux Enterprise Server for SAP Applications 12 SP2
kgraft-patch-4_4_121-92_104-default-7-2.5
kgraft-patch-4_4_121-92_109-default-7-2.5

Ссылки

Описание

An issue was discovered in the Linux kernel before 4.18.7. In block/blk-core.c, there is an __blk_drain_queue() use-after-free because a certain error case is mishandled.

Затронутые продукты
SUSE Linux Enterprise Server 12 SP2-LTSS:kgraft-patch-4_4_121-92_104-default-7-2.5
SUSE Linux Enterprise Server 12 SP2-LTSS:kgraft-patch-4_4_121-92_109-default-7-2.5
SUSE Linux Enterprise Server for SAP Applications 12 SP2:kgraft-patch-4_4_121-92_104-default-7-2.5
SUSE Linux Enterprise Server for SAP Applications 12 SP2:kgraft-patch-4_4_121-92_109-default-7-2.5
Ссылки

Описание

Linux kernel CIFS implementation, version 4.9.0 is vulnerable to a relative paths injection in directory entry lists.

Затронутые продукты
SUSE Linux Enterprise Server 12 SP2-LTSS:kgraft-patch-4_4_121-92_104-default-7-2.5
SUSE Linux Enterprise Server 12 SP2-LTSS:kgraft-patch-4_4_121-92_109-default-7-2.5
SUSE Linux Enterprise Server for SAP Applications 12 SP2:kgraft-patch-4_4_121-92_104-default-7-2.5
SUSE Linux Enterprise Server for SAP Applications 12 SP2:kgraft-patch-4_4_121-92_109-default-7-2.5
Ссылки

Описание

In the Linux kernel before 5.1.17, ptrace_link in kernel/ptrace.c mishandles the recording of the credentials of a process that wants to create a ptrace relationship, which allows local users to obtain root access by leveraging certain scenarios with a parent-child process relationship, where a parent drops privileges and calls execve (potentially allowing control by an attacker). One contributing factor is an object lifetime issue (which can also cause a panic). Another contributing factor is incorrect marking of a ptrace relationship as privileged, which is exploitable through (for example) Polkit's pkexec helper with PTRACE_TRACEME. NOTE: SELinux deny_ptrace might be a usable workaround in some environments.

Затронутые продукты
SUSE Linux Enterprise Server 12 SP2-LTSS:kgraft-patch-4_4_121-92_104-default-7-2.5
SUSE Linux Enterprise Server 12 SP2-LTSS:kgraft-patch-4_4_121-92_109-default-7-2.5
SUSE Linux Enterprise Server for SAP Applications 12 SP2:kgraft-patch-4_4_121-92_104-default-7-2.5
SUSE Linux Enterprise Server for SAP Applications 12 SP2:kgraft-patch-4_4_121-92_109-default-7-2.5
Ссылки
Уязвимость SUSE-SU-2019:3260-1