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6 vulnerabilities found for runc by opencontainers

CVE-2025-52881 (GCVE-0-2025-52881)
Vulnerability from nvd
Published
2025-11-06 20:23
Modified
2025-11-06 21:07
Severity ?
7.3 (High) - CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
CWE
  • CWE-61 - UNIX Symbolic Link (Symlink) Following
  • CWE-363 - Race Condition Enabling Link Following
Summary
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.
References
https://github.com/opencontainers/runc/security/advisories/GHSA-cgrx-mc8f-2prm x_refsource_CONFIRM
https://github.com/opencontainers/runc/security/advisories/GHSA-qw9x-cqr3-wc7r x_refsource_MISC
https://github.com/opencontainers/runc/security/advisories/GHSA-9493-h29p-rfm2 x_refsource_MISC
https://github.com/opencontainers/runc/commit/ff94f9991bd32076c871ef0ad8bc1b763458e480 x_refsource_MISC
https://github.com/opencontainers/runc/commit/ff6fe1324663538167eca8b3d3eec61e1bd4fa51 x_refsource_MISC
https://github.com/opencontainers/runc/commit/ed6b1693b8b3ae7eb0250a7e76fc888cdacf98c1 x_refsource_MISC
https://github.com/opencontainers/runc/commit/db19bbed5348847da433faa9d69e9f90192bfa64 x_refsource_MISC
https://github.com/opencontainers/runc/commit/d61fd29d854b416feaaf128bf650325cd2182165 x_refsource_MISC
https://github.com/opencontainers/runc/commit/d40b3439a9614a86e87b81a94c6811ec6fa2d7d2 x_refsource_MISC
https://github.com/opencontainers/runc/commit/b3dd1bc562ed9996d1a0f249e056c16624046d28 x_refsource_MISC
https://github.com/opencontainers/runc/commit/77d217c7c3775d8ca5af89e477e81568ef4572db x_refsource_MISC
https://github.com/opencontainers/runc/commit/77889b56db939c323d29d1130f28f9aea2edb544 x_refsource_MISC
https://github.com/opencontainers/runc/commit/6fc191449109ea14bb7d61238f24a33fe08c651f x_refsource_MISC
https://github.com/opencontainers/runc/commit/4b37cd93f86e72feac866442988b549b5b7bf3e6 x_refsource_MISC
https://github.com/opencontainers/runc/commit/44a0fcf685db051c80b8c269812bb177f5802c58 x_refsource_MISC
https://github.com/opencontainers/runc/commit/435cc81be6b79cdec73b4002c0dae549b2f6ae6d x_refsource_MISC
https://github.com/opencontainers/runc/commit/3f925525b44d247e390e529e772a0dc0c0bc3557 x_refsource_MISC
https://github.com/opencontainers/runc/blob/v1.4.0-rc.2/RELEASES.md x_refsource_MISC
http://github.com/opencontainers/runc/commit/a41366e74080fa9f26a2cd3544e2801449697322 x_refsource_MISC
http://github.com/opencontainers/runc/commit/fdcc9d3cad2f85954a241ccb910a61aaa1ef47f3 x_refsource_MISC
Impacted products
Vendor Product Version
opencontainers runc Version: <= 1.2.7, < 1.2.8
Version: <= 1.3.2, < 1.3.3
Version: <= 1.4.0-rc.2, < 1.4.0-rc.3
 Create a notification for this product.
Show details on NVD website

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CVE-2025-52565 (GCVE-0-2025-52565)
Vulnerability from nvd
Published
2025-11-06 20:02
Modified
2025-11-06 21:32
Severity ?
8.4 (High) - CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:N/SC:H/SI:H/SA:H
CWE
  • CWE-61 - UNIX Symbolic Link (Symlink) Following
  • CWE-363 - Race Condition Enabling Link Following
Summary
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.
References
Impacted products
Vendor Product Version
opencontainers runc Version: >= 1.0.0-rc3, < 1.2.8
Version: >= 1.3.0-rc.1, < 1.3.3
Version: >= 1.4.0-rc.1, < 1.4.0-rc.3
 Create a notification for this product.
Show details on NVD website

To clipboard 

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CVE-2025-31133 (GCVE-0-2025-31133)
Vulnerability from nvd
Published
2025-11-06 18:47
Modified
2025-11-06 19:22
Severity ?
7.3 (High) - CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
CWE
  • CWE-61 - UNIX Symbolic Link (Symlink) Following
  • CWE-363 - Race Condition Enabling Link Following
Summary
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.
References
Impacted products
Vendor Product Version
opencontainers runc Version: < 1.2.8
Version: >= 1.3.0-rc.1, < 1.3.3
Version: >= 1.4.0-rc.1, <= 1.4.0-rc.3
 Create a notification for this product.
Show details on NVD website

To clipboard 

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CVE-2025-52881 (GCVE-0-2025-52881)
Vulnerability from cvelistv5
Published
2025-11-06 20:23
Modified
2025-11-06 21:07
Severity ?
7.3 (High) - CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
CWE
  • CWE-61 - UNIX Symbolic Link (Symlink) Following
  • CWE-363 - Race Condition Enabling Link Following
Summary
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.
References
https://github.com/opencontainers/runc/security/advisories/GHSA-cgrx-mc8f-2prm x_refsource_CONFIRM
https://github.com/opencontainers/runc/security/advisories/GHSA-qw9x-cqr3-wc7r x_refsource_MISC
https://github.com/opencontainers/runc/security/advisories/GHSA-9493-h29p-rfm2 x_refsource_MISC
https://github.com/opencontainers/runc/commit/ff94f9991bd32076c871ef0ad8bc1b763458e480 x_refsource_MISC
https://github.com/opencontainers/runc/commit/ff6fe1324663538167eca8b3d3eec61e1bd4fa51 x_refsource_MISC
https://github.com/opencontainers/runc/commit/ed6b1693b8b3ae7eb0250a7e76fc888cdacf98c1 x_refsource_MISC
https://github.com/opencontainers/runc/commit/db19bbed5348847da433faa9d69e9f90192bfa64 x_refsource_MISC
https://github.com/opencontainers/runc/commit/d61fd29d854b416feaaf128bf650325cd2182165 x_refsource_MISC
https://github.com/opencontainers/runc/commit/d40b3439a9614a86e87b81a94c6811ec6fa2d7d2 x_refsource_MISC
https://github.com/opencontainers/runc/commit/b3dd1bc562ed9996d1a0f249e056c16624046d28 x_refsource_MISC
https://github.com/opencontainers/runc/commit/77d217c7c3775d8ca5af89e477e81568ef4572db x_refsource_MISC
https://github.com/opencontainers/runc/commit/77889b56db939c323d29d1130f28f9aea2edb544 x_refsource_MISC
https://github.com/opencontainers/runc/commit/6fc191449109ea14bb7d61238f24a33fe08c651f x_refsource_MISC
https://github.com/opencontainers/runc/commit/4b37cd93f86e72feac866442988b549b5b7bf3e6 x_refsource_MISC
https://github.com/opencontainers/runc/commit/44a0fcf685db051c80b8c269812bb177f5802c58 x_refsource_MISC
https://github.com/opencontainers/runc/commit/435cc81be6b79cdec73b4002c0dae549b2f6ae6d x_refsource_MISC
https://github.com/opencontainers/runc/commit/3f925525b44d247e390e529e772a0dc0c0bc3557 x_refsource_MISC
https://github.com/opencontainers/runc/blob/v1.4.0-rc.2/RELEASES.md x_refsource_MISC
http://github.com/opencontainers/runc/commit/a41366e74080fa9f26a2cd3544e2801449697322 x_refsource_MISC
http://github.com/opencontainers/runc/commit/fdcc9d3cad2f85954a241ccb910a61aaa1ef47f3 x_refsource_MISC
Impacted products
Vendor Product Version
opencontainers runc Version: <= 1.2.7, < 1.2.8
Version: <= 1.3.2, < 1.3.3
Version: <= 1.4.0-rc.2, < 1.4.0-rc.3
 Create a notification for this product.
Show details on NVD website

To clipboard 

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CVE-2025-52565 (GCVE-0-2025-52565)
Vulnerability from cvelistv5
Published
2025-11-06 20:02
Modified
2025-11-06 21:32
Severity ?
8.4 (High) - CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:N/SC:H/SI:H/SA:H
CWE
  • CWE-61 - UNIX Symbolic Link (Symlink) Following
  • CWE-363 - Race Condition Enabling Link Following
Summary
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.
References
Impacted products
Vendor Product Version
opencontainers runc Version: >= 1.0.0-rc3, < 1.2.8
Version: >= 1.3.0-rc.1, < 1.3.3
Version: >= 1.4.0-rc.1, < 1.4.0-rc.3
 Create a notification for this product.
Show details on NVD website

To clipboard 

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CVE-2025-31133 (GCVE-0-2025-31133)
Vulnerability from cvelistv5
Published
2025-11-06 18:47
Modified
2025-11-06 19:22
Severity ?
7.3 (High) - CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
CWE
  • CWE-61 - UNIX Symbolic Link (Symlink) Following
  • CWE-363 - Race Condition Enabling Link Following
Summary
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.
References
Impacted products
Vendor Product Version
opencontainers runc Version: < 1.2.8
Version: >= 1.3.0-rc.1, < 1.3.3
Version: >= 1.4.0-rc.1, <= 1.4.0-rc.3
 Create a notification for this product.
Show details on NVD website

To clipboard 

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