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SUSE-SU-2025:4074-1

Опубликовано: 12 нояб. 2025
Источник: suse-cvrf

Описание

Security update for buildah

This update for buildah fixes the following issues:

  • CVE-2025-52881: Fixed container breakouts by bypassing runc's restrictions for writing to arbitrary /proc files (bsc#1253096)

Other fixes:

  • podman and buildah with runc 1.3.2 fail with lots of warnings as rootless (bsc#1252543)

Список пакетов

SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS
buildah-1.35.5-150400.3.53.1
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS
buildah-1.35.5-150400.3.53.1
SUSE Linux Enterprise Server 15 SP4-LTSS
buildah-1.35.5-150400.3.53.1
SUSE Linux Enterprise Server for SAP Applications 15 SP4
buildah-1.35.5-150400.3.53.1

Ссылки

Описание

runc is a CLI tool for spawning and running containers according to the OCI specification. In versions 1.2.7, 1.3.2 and 1.4.0-rc.2, an attacker can trick runc into misdirecting writes to /proc to other procfs files through the use of a racing container with shared mounts (we have also verified this attack is possible to exploit using a standard Dockerfile with docker buildx build as that also permits triggering parallel execution of containers with custom shared mounts configured). This redirect could be through symbolic links in a tmpfs or theoretically other methods such as regular bind-mounts. While similar, the mitigation applied for the related CVE, CVE-2019-19921, was fairly limited and effectively only caused runc to verify that when LSM labels are written they are actually procfs files. This issue is fixed in versions 1.2.8, 1.3.3, and 1.4.0-rc.3.

Затронутые продукты
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS:buildah-1.35.5-150400.3.53.1
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS:buildah-1.35.5-150400.3.53.1
SUSE Linux Enterprise Server 15 SP4-LTSS:buildah-1.35.5-150400.3.53.1
SUSE Linux Enterprise Server for SAP Applications 15 SP4:buildah-1.35.5-150400.3.53.1
Ссылки