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SUSE-SU-2021:4057-1

Опубликовано: 14 дек. 2021
Источник: suse-cvrf

Описание

Security update for the Linux Kernel (Live Patch 37 for SLE 12 SP3)

This update for the Linux Kernel 4.4.180-94_138 fixes one issue.

The following security issue was fixed:

  • CVE-2021-20322: Make the ipv4 and ipv6 ICMP exception caches less predictive to avoid information leaks about UDP ports in use. (bsc#1191790)

Список пакетов

SUSE Linux Enterprise Server 12 SP3-LTSS
kgraft-patch-4_4_180-94_147-default-6-2.1
kgraft-patch-4_4_180-94_144-default-9-2.1
kgraft-patch-4_4_180-94_141-default-12-2.2
kgraft-patch-4_4_180-94_138-default-13-2.2
SUSE Linux Enterprise Server for SAP Applications 12 SP3
kgraft-patch-4_4_180-94_147-default-6-2.1
kgraft-patch-4_4_180-94_144-default-9-2.1
kgraft-patch-4_4_180-94_141-default-12-2.2
kgraft-patch-4_4_180-94_138-default-13-2.2

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 Server 12 SP3-LTSS:kgraft-patch-4_4_180-94_138-default-13-2.2
SUSE Linux Enterprise Server 12 SP3-LTSS:kgraft-patch-4_4_180-94_141-default-12-2.2
SUSE Linux Enterprise Server 12 SP3-LTSS:kgraft-patch-4_4_180-94_144-default-9-2.1
SUSE Linux Enterprise Server 12 SP3-LTSS:kgraft-patch-4_4_180-94_147-default-6-2.1
Ссылки