UBUNTU-CVE-2025-6966

See a problem?
Please try reporting it to the source first.

Source

https://ubuntu.com/security/CVE-2025-6966

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-6966.json

JSON Data

https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2025-6966

Upstream

CVE-2025-6966

Downstream

USN-7916-1

Related

USN-7916-1

Published

2025-12-05T00:00:00Z

Modified

2025-12-11T08:51:48.385769Z

Severity

6.9 (Medium) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
6.2 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Ubuntu - medium

Summary

[none]

Details

NULL pointer dereference in TagSection.keys() in python-apt on APT-based Linux systems allows a local attacker to cause a denial of service (process crash) via a crafted deb822 file with a malformed non-UTF-8 key.

References

Affected packages

Ubuntu:22.04:LTS

python-apt

Package

Name: python-apt
Purl: pkg:deb/ubuntu/python-apt@2.4.0ubuntu4.1?arch=source&distro=jammy

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

2.4.0ubuntu4.1

Affected versions

2.*

2.2.1

2.3.0

2.3.0ubuntu1

2.3.0ubuntu2

2.3.0ubuntu2.1

2.4.0

2.4.0ubuntu1

2.4.0ubuntu2

2.4.0ubuntu3

2.4.0ubuntu4

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "python-apt-common",
            "binary_version": "2.4.0ubuntu4.1"
        },
        {
            "binary_name": "python-apt-dev",
            "binary_version": "2.4.0ubuntu4.1"
        },
        {
            "binary_name": "python3-apt",
            "binary_version": "2.4.0ubuntu4.1"
        }
    ],
    "availability": "No subscription required"
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-6966.json"

Ubuntu:24.04:LTS

python-apt

Package

Name: python-apt
Purl: pkg:deb/ubuntu/python-apt@2.7.7ubuntu5.1?arch=source&distro=noble

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

2.7.7ubuntu5.1

Affected versions

2.*

2.6.0ubuntu1

2.6.0ubuntu2

2.7.0

2.7.5

2.7.6

2.7.7

2.7.7build1

2.7.7ubuntu1

2.7.7ubuntu2

2.7.7ubuntu3

2.7.7ubuntu4

2.7.7ubuntu5

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "python-apt-common",
            "binary_version": "2.7.7ubuntu5.1"
        },
        {
            "binary_name": "python-apt-dev",
            "binary_version": "2.7.7ubuntu5.1"
        },
        {
            "binary_name": "python3-apt",
            "binary_version": "2.7.7ubuntu5.1"
        }
    ],
    "availability": "No subscription required"
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-6966.json"

Ubuntu:25.04

python-apt

Package

Name: python-apt
Purl: pkg:deb/ubuntu/python-apt@3.0.0ubuntu0.25.04.1?arch=source&distro=plucky

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

3.0.0ubuntu0.25.04.1

Affected versions

2.*

2.9.0ubuntu1

2.9.0ubuntu2

2.9.5

2.9.6build1

2.9.8

2.9.9

2.9.9build1

3.*

3.0.0

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "python-apt-common",
            "binary_version": "3.0.0ubuntu0.25.04.1"
        },
        {
            "binary_name": "python-apt-dev",
            "binary_version": "3.0.0ubuntu0.25.04.1"
        },
        {
            "binary_name": "python3-apt",
            "binary_version": "3.0.0ubuntu0.25.04.1"
        }
    ],
    "availability": "No subscription required"
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-6966.json"

Ubuntu:25.10

python-apt

Package

Name: python-apt
Purl: pkg:deb/ubuntu/python-apt@3.0.0ubuntu1.1?arch=source&distro=questing

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

3.0.0ubuntu1.1

Affected versions

3.*

3.0.0

3.0.0ubuntu1

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "python-apt-common",
            "binary_version": "3.0.0ubuntu1.1"
        },
        {
            "binary_name": "python-apt-dev",
            "binary_version": "3.0.0ubuntu1.1"
        },
        {
            "binary_name": "python3-apt",
            "binary_version": "3.0.0ubuntu1.1"
        }
    ],
    "availability": "No subscription required"
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-6966.json"

Ubuntu:Pro:14.04:LTS

python-apt

Package

Name: python-apt
Purl: pkg:deb/ubuntu/python-apt@0.9.3.5ubuntu3+esm5?arch=source&distro=esm-infra-legacy/trusty

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

0.9.3.5ubuntu3+esm5

Affected versions

0.*

0.8.9.1ubuntu1

0.9.0

0.9.1

0.9.1ubuntu1

0.9.3.2

0.9.3.2ubuntu2

0.9.3.3

0.9.3.3ubuntu1

0.9.3.4

0.9.3.4build1

0.9.3.5

0.9.3.5ubuntu1

0.9.3.5ubuntu2

0.9.3.5ubuntu3

0.9.3.5ubuntu3+esm2

0.9.3.5ubuntu3+esm4

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "python-apt",
            "binary_version": "0.9.3.5ubuntu3+esm5"
        },
        {
            "binary_name": "python-apt-common",
            "binary_version": "0.9.3.5ubuntu3+esm5"
        },
        {
            "binary_name": "python-apt-dev",
            "binary_version": "0.9.3.5ubuntu3+esm5"
        },
        {
            "binary_name": "python3-apt",
            "binary_version": "0.9.3.5ubuntu3+esm5"
        }
    ],
    "availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro"
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-6966.json"

Ubuntu:Pro:16.04:LTS

python-apt

Package

Name: python-apt
Purl: pkg:deb/ubuntu/python-apt@1.1.0~beta1ubuntu0.16.04.12+esm1?arch=source&distro=esm-infra/xenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.1.0~beta1ubuntu0.16.04.12+esm1

Affected versions

1.*

1.0.1build1

1.0.1ubuntu2

1.1.0~beta1

1.1.0~beta1build1

1.1.0~beta1ubuntu0.16.04.1

1.1.0~beta1ubuntu0.16.04.2

1.1.0~beta1ubuntu0.16.04.4

1.1.0~beta1ubuntu0.16.04.5

1.1.0~beta1ubuntu0.16.04.7

1.1.0~beta1ubuntu0.16.04.8

1.1.0~beta1ubuntu0.16.04.9

1.1.0~beta1ubuntu0.16.04.10

1.1.0~beta1ubuntu0.16.04.11

1.1.0~beta1ubuntu0.16.04.12

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "python-apt",
            "binary_version": "1.1.0~beta1ubuntu0.16.04.12+esm1"
        },
        {
            "binary_name": "python-apt-common",
            "binary_version": "1.1.0~beta1ubuntu0.16.04.12+esm1"
        },
        {
            "binary_name": "python-apt-dev",
            "binary_version": "1.1.0~beta1ubuntu0.16.04.12+esm1"
        },
        {
            "binary_name": "python3-apt",
            "binary_version": "1.1.0~beta1ubuntu0.16.04.12+esm1"
        }
    ],
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-6966.json"

Ubuntu:Pro:18.04:LTS

python-apt

Package

Name: python-apt
Purl: pkg:deb/ubuntu/python-apt@1.6.6ubuntu0.1~esm1?arch=source&distro=esm-infra/bionic

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.6.6ubuntu0.1~esm1

Affected versions

1.*

1.4.0~beta3build2

1.4.0~beta3ubuntu1

1.6.0~rc2ubuntu1

1.6.0~rc2ubuntu2

1.6.0

1.6.1

1.6.2

1.6.3

1.6.3ubuntu1

1.6.4

1.6.5ubuntu0.1

1.6.5ubuntu0.2

1.6.5ubuntu0.3

1.6.5ubuntu0.4

1.6.5ubuntu0.5

1.6.5ubuntu0.6

1.6.5ubuntu0.7

1.6.6

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "python-apt",
            "binary_version": "1.6.6ubuntu0.1~esm1"
        },
        {
            "binary_name": "python-apt-common",
            "binary_version": "1.6.6ubuntu0.1~esm1"
        },
        {
            "binary_name": "python-apt-dev",
            "binary_version": "1.6.6ubuntu0.1~esm1"
        },
        {
            "binary_name": "python3-apt",
            "binary_version": "1.6.6ubuntu0.1~esm1"
        }
    ],
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-6966.json"

Ubuntu:Pro:20.04:LTS

python-apt

Package

Name: python-apt
Purl: pkg:deb/ubuntu/python-apt@2.0.1ubuntu0.20.04.1+esm1?arch=source&distro=esm-infra/focal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

2.0.1ubuntu0.20.04.1+esm1

Affected versions

1.*

1.9.0ubuntu1

1.9.0ubuntu3

1.9.0ubuntu5

1.9.3ubuntu2

1.9.5

1.9.5build1

1.9.7

1.9.8

1.9.10

2.*

2.0.0

2.0.0ubuntu0.20.04.1

2.0.0ubuntu0.20.04.2

2.0.0ubuntu0.20.04.3

2.0.0ubuntu0.20.04.4

2.0.0ubuntu0.20.04.5

2.0.0ubuntu0.20.04.6

2.0.0ubuntu0.20.04.7

2.0.0ubuntu0.20.04.8

2.0.1

2.0.1ubuntu0.20.04.1

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "python-apt",
            "binary_version": "2.0.1ubuntu0.20.04.1+esm1"
        },
        {
            "binary_name": "python-apt-common",
            "binary_version": "2.0.1ubuntu0.20.04.1+esm1"
        },
        {
            "binary_name": "python-apt-dev",
            "binary_version": "2.0.1ubuntu0.20.04.1+esm1"
        },
        {
            "binary_name": "python3-apt",
            "binary_version": "2.0.1ubuntu0.20.04.1+esm1"
        }
    ],
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-6966.json"