youki container escape via "masked path" abuse due to mount race conditions

Impact youki utilizes bind mounting the container's /dev/null as a file mask. When performing this operation, the initial validation of the source /dev/null was insufficient. Specifically, we initially failed to verify whether /dev/null was genuinely present. However, we did perform validation to...

Race Condition Enabling Link Following

Overview Affected versions of this package are vulnerable to Race Condition Enabling Link Following in the handling of procfs file writes. An attacker can cause arbitrary writes to sensitive files or trigger a denial of service by redirecting write operations through race conditions and...

Race Condition Enabling Link Following

Overview Affected versions of this package are vulnerable to Race Condition Enabling Link Following due to insufficient checks when bind-mounting /dev/pts/$n to /dev/console inside the container. An attacker can gain unauthorized write access to sensitive files within the container environment by...

runc container escape with malicious config due to /dev/console mount and related races

Impact 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. In runc version 1.0.0-rc3 and later...

Race Condition Enabling Link Following

Overview Affected versions of this package are vulnerable to Race Condition Enabling Link Following due to insufficient checks when bind-mounting /dev/pts/$n to /dev/console inside the container. An attacker can gain unauthorized write access to sensitive files within the container environment by...

Race Condition Enabling Link Following

Overview Affected versions of this package are vulnerable to Race Condition Enabling Link Following due to insufficient checks when bind-mounting /dev/pts/$n to /dev/console inside the container. An attacker can gain unauthorized write access to sensitive files within the container environment by...

GHSA-QW9X-CQR3-WC7R runc container escape with malicious config due to /dev/console mount and related races

Impact 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. In runc version 1.0.0-rc3 and later...

Race Condition Enabling Link Following

Overview github.com/opencontainers/runc/libcontainer is a package for a modern container runtime. Affected versions of this package are vulnerable to Race Condition Enabling Link Following via a race condition in the maskedPaths feature. An attacker can gain unauthorized access to host files,...

runc container escape via "masked path" abuse due to mount race conditions

Impact The OCI runtime specification has a maskedPaths feature that allows for files or directories to be "masked" by placing a mount on top of them to conceal their contents. This is primarily intended to protect against privileged users in non-user-namespaced from being able to write to files o...

Security update for runc

This update for runc fixes the following issues: CVE-2025-31133: Fixed container escape via 'masked path' abuse due to mount race conditions bsc1252232. CVE-2025-52565: Fixed container escape with malicious config due to /dev/console mount and related races bsc1252232. CVE-2025-52881: Fixed...

SUSE-SU-2025:3951-1 Security update for runc

This update for runc fixes the following issues: - CVE-2025-31133: Fixed container escape via 'masked path' abuse due to mount race conditions bsc1252232. - CVE-2025-52565: Fixed container escape with malicious config due to /dev/console mount and related races bsc1252232. - CVE-2025-52881: Fixed...

Security update for runc

This update for runc fixes the following issues: CVE-2025-31133: Fixed container escape via 'masked path' abuse due to mount race conditions bsc1252232. CVE-2025-52565: Fixed container escape with malicious config due to /dev/console mount and related races bsc1252232. CVE-2025-52881: Fixed...

UBUNTU-CVE-2025-52565

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...

UBUNTU-CVE-2025-31133

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...

PT-2025-45166

Name of the Vulnerable Software and Affected Versions Youki versions 0.5.6 and below Description Youki is a container runtime written in Rust. Insufficient initial validation of the /dev/null source allows for container escape when bind mounting the container's /dev/null as a file mask. This occu...

PT-2025-45670

Impact youki utilizes bind mounting the container's /dev/null as a file mask. When performing this operation, the initial validation of the source /dev/null was insufficient. Specifically, we initially failed to verify whether /dev/null was genuinely present. However, we did perform validation to...

PT-2025-45167

Name of the Vulnerable Software and Affected Versions Youki versions 0.5.6 and below Description Youki, a container runtime written in Rust, has an issue with its apparmor handling. Insufficiently strict write-target validation, combined with path substitution during pathname resolution, can allo...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-989030)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989030 advisory. In the Linux kernel, the following vulnerability has been resolved: ocfs2: mount fails with buffer overflow in strlen Starting with kernel 5.11 built with...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-988780)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-988780 advisory. In the Linux kernel, the following vulnerability has been resolved: cifs: fix double free race when mount fails in cifsgetroot When cifsgetroot fails during...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-988984)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-988984 advisory. In the Linux kernel, the following vulnerability has been resolved: ext4: filter out EXT4FCREPLAY from on-disk superblock field sstate The EXT4FCREPLAY bit in...