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SUSE-SU-2022:1571-1

Опубликовано: 09 мая 2022
Источник: suse-cvrf

Описание

Security update for the Linux Kernel (Live Patch 15 for SLE 15 SP3)

This update for the Linux Kernel 5.3.18-150300_59_54 fixes one issue.

The following security issue was fixed:

    • CVE-2022-1158: Fixed KVM x86/mmu compare-and-exchange of gPTE via the user address (bsc#1198133)

Список пакетов

SUSE Linux Enterprise Live Patching 15 SP3
kernel-livepatch-5_3_18-150300_59_60-default-4-150300.2.1
kernel-livepatch-5_3_18-150300_59_49-default-6-150300.2.1
kernel-livepatch-5_3_18-150300_59_54-default-5-150300.2.1

Ссылки

Описание

A flaw was found in KVM. When updating a guest's page table entry, vm_pgoff was improperly used as the offset to get the page's pfn. As vaddr and vm_pgoff are controllable by user-mode processes, this flaw allows unprivileged local users on the host to write outside the userspace region and potentially corrupt the kernel, resulting in a denial of service condition.

Затронутые продукты
SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_49-default-6-150300.2.1
SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_54-default-5-150300.2.1
SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_60-default-4-150300.2.1
Ссылки