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SUSE-SU-2019:2601-1

Опубликовано: 08 окт. 2019
Источник: suse-cvrf

Описание

Security update for the Linux Kernel (Live Patch 32 for SLE 12 SP2)

This update for the Linux Kernel 4.4.121-92_120 fixes several issues.

The following security issues were fixed:

  • CVE-2019-14835: A buffer overflow flaw was found in the way vhost functionality, that translates virtqueue buffers to IOVs, logged the buffer descriptors during migration. A privileged guest user able to pass descriptors with invalid length to the host when migration is underway, could use this flaw to increase their privileges on the host (bsc#1151021).
  • CVE-2018-5390: Fixed a denial of service ('SegmentSmack') in tcp_collapse_ofo_queue() and tcp_prune_ofo_queue() for every incoming packet (bsc#1102682).

Список пакетов

SUSE Linux Enterprise Server 12 SP2-LTSS
kgraft-patch-4_4_121-92_120-default-2-2.1
SUSE Linux Enterprise Server for SAP Applications 12 SP2
kgraft-patch-4_4_121-92_120-default-2-2.1

Ссылки

Описание

Linux kernel versions 4.9+ can be forced to make very expensive calls to tcp_collapse_ofo_queue() and tcp_prune_ofo_queue() for every incoming packet which can lead to a denial of service.

Затронутые продукты
SUSE Linux Enterprise Server 12 SP2-LTSS:kgraft-patch-4_4_121-92_120-default-2-2.1
SUSE Linux Enterprise Server for SAP Applications 12 SP2:kgraft-patch-4_4_121-92_120-default-2-2.1
Ссылки

Описание

A buffer overflow flaw was found, in versions from 2.6.34 to 5.2.x, in the way Linux kernel's vhost functionality that translates virtqueue buffers to IOVs, logged the buffer descriptors during migration. A privileged guest user able to pass descriptors with invalid length to the host when migration is underway, could use this flaw to increase their privileges on the host.

Затронутые продукты
SUSE Linux Enterprise Server 12 SP2-LTSS:kgraft-patch-4_4_121-92_120-default-2-2.1
SUSE Linux Enterprise Server for SAP Applications 12 SP2:kgraft-patch-4_4_121-92_120-default-2-2.1
Ссылки
Уязвимость SUSE-SU-2019:2601-1