Security update for runc SUSE Patch security@suse.de SUSE Security Team SUSE-SU-2025:4073-2 Final 1 1 2025-11-24T02:49:00Z current 2025-11-24T02:49:00Z 2025-11-24T02:49:00Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for runc This update for runc fixes the following issues: Update to runc v1.3.3. Upstream changelog is available from <https://github.com/opencontainers/runc/releases/tag/v1.3.3>. bsc#1252232 * CVE-2025-31133 * CVE-2025-52565 * CVE-2025-52881 Update to runc v1.3.2. Upstream changelog is available from <https://github.com/opencontainers/runc/releases/tag/v1.3.2> bsc#1252110 - Includes an important fix for the CPUSet translation for cgroupv2. Update to runc v1.3.1. Upstream changelog is available from <https://github.com/opencontainers/runc/releases/tag/v1.3.1> Update to runc v1.3.0. Upstream changelog is available from <https://github.com/opencontainers/runc/releases/tag/v1.3.0> The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). Container suse/sle-micro/5.5:latest-2025-4073,SUSE-2025-4073,SUSE-SLE-Product-HPC-15-SP3-LTSS-2025-4073,SUSE-SLE-Product-HPC-15-SP4-ESPOS-2025-4073,SUSE-SLE-Product-HPC-15-SP4-LTSS-2025-4073,SUSE-SLE-Product-HPC-15-SP5-ESPOS-2025-4073,SUSE-SLE-Product-HPC-15-SP5-LTSS-2025-4073,SUSE-SLE-Product-SLES-15-SP3-LTSS-2025-4073,SUSE-SLE-Product-SLES-15-SP4-LTSS-2025-4073,SUSE-SLE-Product-SLES-15-SP5-LTSS-2025-4073,SUSE-SLE-Product-SLES_SAP-15-SP3-2025-4073,SUSE-SLE-Product-SLES_SAP-15-SP4-2025-4073,SUSE-SLE-Product-SLES_SAP-15-SP5-2025-4073 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://www.suse.com/support/update/announcement/2025/suse-su-20254073-2/ Link for SUSE-SU-2025:4073-2 https://lists.suse.com/pipermail/sle-security-updates/2025-November/023325.html E-Mail link for SUSE-SU-2025:4073-2 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1252110 SUSE Bug 1252110 https://bugzilla.suse.com/1252232 SUSE Bug 1252232 https://www.suse.com/security/cve/CVE-2025-31133/ SUSE CVE CVE-2025-31133 page https://www.suse.com/security/cve/CVE-2025-52565/ SUSE CVE CVE-2025-52565 page https://www.suse.com/security/cve/CVE-2025-52881/ SUSE CVE CVE-2025-52881 page Container suse/sle-micro/5.5:latest SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS SUSE Linux Enterprise Server 15 SP3-LTSS SUSE Linux Enterprise Server 15 SP4-LTSS SUSE Linux Enterprise Server 15 SP5-LTSS SUSE Linux Enterprise Server for SAP Applications 15 SP3 SUSE Linux Enterprise Server for SAP Applications 15 SP4 SUSE Linux Enterprise Server for SAP Applications 15 SP5 runc-1.3.3-150000.85.1 runc-1.3.3-150000.85.1 as a component of Container suse/sle-micro/5.5:latest runc-1.3.3-150000.85.1 as a component of SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS runc-1.3.3-150000.85.1 as a component of SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS runc-1.3.3-150000.85.1 as a component of SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS runc-1.3.3-150000.85.1 as a component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS runc-1.3.3-150000.85.1 as a component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS runc-1.3.3-150000.85.1 as a component of SUSE Linux Enterprise Server 15 SP3-LTSS runc-1.3.3-150000.85.1 as a component of SUSE Linux Enterprise Server 15 SP4-LTSS runc-1.3.3-150000.85.1 as a component of SUSE Linux Enterprise Server 15 SP5-LTSS runc-1.3.3-150000.85.1 as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP3 runc-1.3.3-150000.85.1 as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP4 runc-1.3.3-150000.85.1 as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP5 runc is a CLI tool for spawning and running containers according to the OCI specification. In versions 1.2.7 and below, 1.3.0-rc.1 through 1.3.1, 1.4.0-rc.1 and 1.4.0-rc.2 files, runc would not perform sufficient verification that the source of the bind-mount (i.e., the container's /dev/null) was actually a real /dev/null inode when using the container's /dev/null to mask. This exposes two methods of attack: an arbitrary mount gadget, leading to host information disclosure, host denial of service, container escape, or a bypassing of maskedPaths. This issue is fixed in versions 1.2.8, 1.3.3 and 1.4.0-rc.3. CVE-2025-31133 Container suse/sle-micro/5.5:latest:runc-1.3.3-150000.85.1 SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS:runc-1.3.3-150000.85.1 SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS:runc-1.3.3-150000.85.1 SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS:runc-1.3.3-150000.85.1 SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS:runc-1.3.3-150000.85.1 SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS:runc-1.3.3-150000.85.1 SUSE Linux Enterprise Server 15 SP3-LTSS:runc-1.3.3-150000.85.1 SUSE Linux Enterprise Server 15 SP4-LTSS:runc-1.3.3-150000.85.1 SUSE Linux Enterprise Server 15 SP5-LTSS:runc-1.3.3-150000.85.1 SUSE Linux Enterprise Server for SAP Applications 15 SP3:runc-1.3.3-150000.85.1 SUSE Linux Enterprise Server for SAP Applications 15 SP4:runc-1.3.3-150000.85.1 SUSE Linux Enterprise Server for SAP Applications 15 SP5:runc-1.3.3-150000.85.1 important To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2025/suse-su-20254073-2/ https://www.suse.com/security/cve/CVE-2025-31133.html CVE-2025-31133 https://bugzilla.suse.com/1252232 SUSE Bug 1252232 runc is a CLI tool for spawning and running containers according to the OCI specification. Versions 1.0.0-rc3 through 1.2.7, 1.3.0-rc.1 through 1.3.2, and 1.4.0-rc.1 through 1.4.0-rc.2, due to insufficient checks when bind-mounting `/dev/pts/$n` to `/dev/console` inside the container, an attacker can trick runc into bind-mounting paths which would normally be made read-only or be masked onto a path that the attacker can write to. This attack is very similar in concept and application to CVE-2025-31133, except that it attacks a similar vulnerability in a different target (namely, the bind-mount of `/dev/pts/$n` to `/dev/console` as configured for all containers that allocate a console). This happens after `pivot_root(2)`, so this cannot be used to write to host files directly -- however, as with CVE-2025-31133, this can load to denial of service of the host or a container breakout by providing the attacker with a writable copy of `/proc/sysrq-trigger` or `/proc/sys/kernel/core_pattern` (respectively). This issue is fixed in versions 1.2.8, 1.3.3 and 1.4.0-rc.3. CVE-2025-52565 Container suse/sle-micro/5.5:latest:runc-1.3.3-150000.85.1 SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS:runc-1.3.3-150000.85.1 SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS:runc-1.3.3-150000.85.1 SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS:runc-1.3.3-150000.85.1 SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS:runc-1.3.3-150000.85.1 SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS:runc-1.3.3-150000.85.1 SUSE Linux Enterprise Server 15 SP3-LTSS:runc-1.3.3-150000.85.1 SUSE Linux Enterprise Server 15 SP4-LTSS:runc-1.3.3-150000.85.1 SUSE Linux Enterprise Server 15 SP5-LTSS:runc-1.3.3-150000.85.1 SUSE Linux Enterprise Server for SAP Applications 15 SP3:runc-1.3.3-150000.85.1 SUSE Linux Enterprise Server for SAP Applications 15 SP4:runc-1.3.3-150000.85.1 SUSE Linux Enterprise Server for SAP Applications 15 SP5:runc-1.3.3-150000.85.1 important To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2025/suse-su-20254073-2/ https://www.suse.com/security/cve/CVE-2025-52565.html CVE-2025-52565 https://bugzilla.suse.com/1252232 SUSE Bug 1252232 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. CVE-2025-52881 Container suse/sle-micro/5.5:latest:runc-1.3.3-150000.85.1 SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS:runc-1.3.3-150000.85.1 SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS:runc-1.3.3-150000.85.1 SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS:runc-1.3.3-150000.85.1 SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS:runc-1.3.3-150000.85.1 SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS:runc-1.3.3-150000.85.1 SUSE Linux Enterprise Server 15 SP3-LTSS:runc-1.3.3-150000.85.1 SUSE Linux Enterprise Server 15 SP4-LTSS:runc-1.3.3-150000.85.1 SUSE Linux Enterprise Server 15 SP5-LTSS:runc-1.3.3-150000.85.1 SUSE Linux Enterprise Server for SAP Applications 15 SP3:runc-1.3.3-150000.85.1 SUSE Linux Enterprise Server for SAP Applications 15 SP4:runc-1.3.3-150000.85.1 SUSE Linux Enterprise Server for SAP Applications 15 SP5:runc-1.3.3-150000.85.1 important To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2025/suse-su-20254073-2/ https://www.suse.com/security/cve/CVE-2025-52881.html CVE-2025-52881 https://bugzilla.suse.com/1252232 SUSE Bug 1252232