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SUSE-SU-2021:4021-1

Опубликовано: 14 дек. 2021
Источник: suse-cvrf

Описание

Security update for the Linux Kernel (Live Patch 25 for SLE 12 SP5)

This update for the Linux Kernel 4.12.14-122_98 fixes several issues.

The following security issues were fixed:

  • CVE-2021-0941: In bpf_skb_change_head of filter.c, there is a possible out of bounds read 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 (bnc#1192045).
  • CVE-2021-20322: Make the ipv4 and ipv6 ICMP exception caches less predictive to avoid information leaks about UDP ports in use. (bsc#1191790)
  • CVE-2021-0935: In ip6_xmit of ip6_output.c, there is a possible out of bounds write 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. (bsc#1192032)

Список пакетов

SUSE Linux Enterprise Live Patching 12 SP5
kgraft-patch-4_12_14-122_98-default-2-2.1

Ссылки

Описание

In ip6_xmit of ip6_output.c, there is a possible out of bounds write 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-168607263References: Upstream kernel

Затронутые продукты
SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_98-default-2-2.1
Ссылки

Описание

In bpf_skb_change_head of filter.c, there is a possible out of bounds read 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-154177719References: Upstream kernel

Затронутые продукты
SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_98-default-2-2.1
Ссылки

Описание

A flaw in the processing of received ICMP errors (ICMP fragment needed and ICMP redirect) in the Linux kernel functionality was found to allow the ability to quickly scan open UDP ports. This flaw allows an off-path remote user to effectively bypass the source port UDP randomization. The highest threat from this vulnerability is to confidentiality and possibly integrity, because software that relies on UDP source port randomization are indirectly affected as well.

Затронутые продукты
SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_98-default-2-2.1
Ссылки