USN-7851-2

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Source

https://ubuntu.com/security/notices/USN-7851-2

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7851-2.json

JSON Data

https://api.test.osv.dev/v1/vulns/USN-7851-2

Published

2025-11-24T11:21:36.641710Z

Modified

2025-11-25T06:29:38.084373Z

Summary

runc-app, runc-stable regression

Details

USN-7851-1 fixed vulnerabilities in runC. The introduction of a new upstream release has caused regressions in runc-app and runc-stable. This update fixes the problem.

Original advisory details:

Lei Wang and Li Fubang discovered that runC incorrectly handled masked paths. An attacker could possibly replace a container's /dev/null with a symlink to some other procfs file and possibly escape a container. (CVE-2025-31133)

Lei Wang and Li Fubang discovered that runC incorrectly handled the /dev/console bind-mounts. An attacker could potentially exploit this issue to build-mount a symlink and escape a container. (CVE-2025-52565)

Li Fubang and Tõnis Tiigi discovered that the fix for CVE-2019-16884 was incomplete. An attacker could possibly use this issue to cause a denial of service or escape the container. (CVE-2025-52881)

References

Affected packages

Ubuntu:22.04:LTS / runc-app

Package

Name: runc-app
Purl: pkg:deb/ubuntu/runc-app@1.3.3-0ubuntu1~22.04.3?arch=source&distro=jammy

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.3.3-0ubuntu1~22.04.3

Affected versions

1.*

1.1.12-0ubuntu2~22.04.1

1.2.5-0ubuntu1~22.04.1

1.3.0-0ubuntu2~22.04.1

1.3.3-0ubuntu1~22.04.2

Ecosystem specific

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "runc",
            "binary_version": "1.3.3-0ubuntu1~22.04.3"
        }
    ]
}

Database specific

cves_map

{
    "cves": [],
    "ecosystem": "Ubuntu:22.04:LTS"
}

Ubuntu:24.04:LTS / runc-app

Package

Name: runc-app
Purl: pkg:deb/ubuntu/runc-app@1.3.3-0ubuntu1~24.04.3?arch=source&distro=noble

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.3.3-0ubuntu1~24.04.3

Affected versions

1.*

1.1.10-0ubuntu1

1.1.12-0ubuntu1

1.1.12-0ubuntu2

1.1.12-0ubuntu3

1.1.12-0ubuntu3.1

1.2.5-0ubuntu1~24.04.1

1.3.0-0ubuntu2~24.04.1

1.3.3-0ubuntu1~24.04.2

Ecosystem specific

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "runc",
            "binary_version": "1.3.3-0ubuntu1~24.04.3"
        }
    ]
}

Database specific

cves_map

{
    "cves": [],
    "ecosystem": "Ubuntu:24.04:LTS"
}

Ubuntu:25.10 / runc-app

Package

Name: runc-app
Purl: pkg:deb/ubuntu/runc-app@1.3.3-0ubuntu1~25.10.3?arch=source&distro=questing

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.3.3-0ubuntu1~25.10.3

Affected versions

1.*

1.2.5-0ubuntu1

1.3.0-0ubuntu1

1.3.0-0ubuntu2

1.3.3-0ubuntu1~25.10.2

Ecosystem specific

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "runc",
            "binary_version": "1.3.3-0ubuntu1~25.10.3"
        }
    ]
}

Database specific

cves_map

{
    "cves": [],
    "ecosystem": "Ubuntu:25.10"
}

Ubuntu:25.10 / runc-stable

Package

Name: runc-stable
Purl: pkg:deb/ubuntu/runc-stable@1.3.3-0ubuntu1~25.10.3?arch=source&distro=questing

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.3.3-0ubuntu1~25.10.3

Affected versions

1.*

1.3.0-0ubuntu1

1.3.3-0ubuntu1~25.10.2

Ecosystem specific

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "runc-stable",
            "binary_version": "1.3.3-0ubuntu1~25.10.3"
        }
    ]
}

Database specific

cves_map

{
    "cves": [],
    "ecosystem": "Ubuntu:25.10"
}

Ubuntu:25.04 / runc-app

Package

Name: runc-app
Purl: pkg:deb/ubuntu/runc-app@1.3.3-0ubuntu1~25.04.3?arch=source&distro=plucky

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.3.3-0ubuntu1~25.04.3

Affected versions

1.*

1.1.12-0ubuntu4

1.2.5-0ubuntu1

1.3.0-0ubuntu2~25.04.1

1.3.3-0ubuntu1~25.04.2

Ecosystem specific

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "runc",
            "binary_version": "1.3.3-0ubuntu1~25.04.3"
        }
    ]
}

Database specific

cves_map

{
    "cves": [],
    "ecosystem": "Ubuntu:25.04"
}