CVE-2025-52565: UNIX Symbolic Link (Symlink) Following

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...

SUSE: Security Advisory (SUSE-SU-2025:3950-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2025 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

SUSE: Security Advisory (SUSE-SU-2025:3951-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2025 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

openSUSE Security Advisory (SUSE-SU-2025:3950-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2025 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Ubuntu: Security Advisory (USN-7851-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2025 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

GHSA-VF95-55W6-QMRF youki container escape and denial of service due to arbitrary write gadgets and procfs write redirects

Impact youki’s apparmor handling performs insufficiently strict write-target validation, which—combined with path substitution during pathname resolution—can allow writes to unintended procfs locations. Weak write-target check youki only verifies that the destination lies somewhere under procfs. ...

GHSA-4G74-7CFF-XCV8 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...

GHSA-CGRX-MC8F-2PRM runc container escape and denial of service due to arbitrary write gadgets and procfs write redirects

Impact This attack is primarily a more sophisticated version of CVE-2019-19921, which was a flaw which allowed an attacker to trick runc into writing the LSM process labels for a container process into a dummy tmpfs file and thus not apply the correct LSM labels to the container process. The...

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 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...

runc container escape and denial of service due to arbitrary write gadgets and procfs write redirects

Impact This attack is primarily a more sophisticated version of CVE-2019-19921, which was a flaw which allowed an attacker to trick runc into writing the LSM process labels for a container process into a dummy tmpfs file and thus not apply the correct LSM labels to the container process. The...

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 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 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 in the handling of procfs file writes. An attacker can cause arbitrary writes to sensitive files or trigger ...

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...

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 due to insufficient checks when bind-mounting /dev/pts/$n to /dev/console inside the container. An attacker...

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...

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...