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SUSE-SU-2021:1252-1

Опубликовано: 19 апр. 2021
Источник: suse-cvrf

Описание

Security update for xen

This update for xen fixes the following issues:

  • CVE-2021-20257: xen: infinite loop issue in the e1000 NIC emulator (bsc#1182846).
  • CVE-2021-27379: Fixed an issue where entries in the IOMMU were not being updated under certain circumstances due to improper backport of XSA-321 (XSA-366, bsc#1182431).

Список пакетов

HPE Helion OpenStack 8
xen-4.9.4_16-3.83.1
xen-doc-html-4.9.4_16-3.83.1
xen-libs-4.9.4_16-3.83.1
xen-libs-32bit-4.9.4_16-3.83.1
xen-tools-4.9.4_16-3.83.1
xen-tools-domU-4.9.4_16-3.83.1
SUSE Linux Enterprise Server 12 SP3-BCL
xen-4.9.4_16-3.83.1
xen-doc-html-4.9.4_16-3.83.1
xen-libs-4.9.4_16-3.83.1
xen-libs-32bit-4.9.4_16-3.83.1
xen-tools-4.9.4_16-3.83.1
xen-tools-domU-4.9.4_16-3.83.1
SUSE Linux Enterprise Server 12 SP3-LTSS
xen-4.9.4_16-3.83.1
xen-doc-html-4.9.4_16-3.83.1
xen-libs-4.9.4_16-3.83.1
xen-libs-32bit-4.9.4_16-3.83.1
xen-tools-4.9.4_16-3.83.1
xen-tools-domU-4.9.4_16-3.83.1
SUSE Linux Enterprise Server for SAP Applications 12 SP3
xen-4.9.4_16-3.83.1
xen-doc-html-4.9.4_16-3.83.1
xen-libs-4.9.4_16-3.83.1
xen-libs-32bit-4.9.4_16-3.83.1
xen-tools-4.9.4_16-3.83.1
xen-tools-domU-4.9.4_16-3.83.1
SUSE OpenStack Cloud 8
xen-4.9.4_16-3.83.1
xen-doc-html-4.9.4_16-3.83.1
xen-libs-4.9.4_16-3.83.1
xen-libs-32bit-4.9.4_16-3.83.1
xen-tools-4.9.4_16-3.83.1
xen-tools-domU-4.9.4_16-3.83.1
SUSE OpenStack Cloud Crowbar 8
xen-4.9.4_16-3.83.1
xen-doc-html-4.9.4_16-3.83.1
xen-libs-4.9.4_16-3.83.1
xen-libs-32bit-4.9.4_16-3.83.1
xen-tools-4.9.4_16-3.83.1
xen-tools-domU-4.9.4_16-3.83.1

Ссылки

Описание

An infinite loop flaw was found in the e1000 NIC emulator of the QEMU. This issue occurs while processing transmits (tx) descriptors in process_tx_desc if various descriptor fields are initialized with invalid values. This flaw allows a guest to consume CPU cycles on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.

Затронутые продукты
HPE Helion OpenStack 8:xen-4.9.4_16-3.83.1
HPE Helion OpenStack 8:xen-doc-html-4.9.4_16-3.83.1
HPE Helion OpenStack 8:xen-libs-32bit-4.9.4_16-3.83.1
HPE Helion OpenStack 8:xen-libs-4.9.4_16-3.83.1
Ссылки

Описание

An issue was discovered in Xen through 4.11.x, allowing x86 Intel HVM guest OS users to achieve unintended read/write DMA access, and possibly cause a denial of service (host OS crash) or gain privileges. This occurs because a backport missed a flush, and thus IOMMU updates were not always correct. NOTE: this issue exists because of an incomplete fix for CVE-2020-15565.

Затронутые продукты
HPE Helion OpenStack 8:xen-4.9.4_16-3.83.1
HPE Helion OpenStack 8:xen-doc-html-4.9.4_16-3.83.1
HPE Helion OpenStack 8:xen-libs-32bit-4.9.4_16-3.83.1
HPE Helion OpenStack 8:xen-libs-4.9.4_16-3.83.1
Ссылки