UBUNTU-CVE-2025-13836
- Source
- https://ubuntu.com/security/CVE-2025-13836
- Import Source
- https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-13836.json
- JSON Data
- https://api.osv.dev/v1/vulns/UBUNTU-CVE-2025-13836
- Upstream
- Downstream
- Related
- Published
- 2025-12-01T18:16:00Z
- Modified
- 2026-02-12T14:33:49.121766Z
- Severity
-
- 6.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L CVSS Calculator
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Ubuntu - medium
- Summary
- [none]
- Details
-
When reading an HTTP response from a server, if no read amount is specified, the default behavior will be to use Content-Length. This allows a malicious server to cause the client to read large amounts of data into memory, potentially causing OOM or other DoS.
- References
-
- https://ubuntu.com/security/CVE-2025-13836
- https://www.cve.org/CVERecord?id=CVE-2025-13836
- https://github.com/python/cpython/issues/119451
- https://github.com/python/cpython/pull/119454
- https://github.com/python/cpython/commit/5a4c4a033a4a54481be6870aa1896fad732555b5
- https://github.com/python/cpython/commit/4ce27904b597c77d74dd93f2c912676021a99155
- https://github.com/python/cpython/commit/4ce27904b597c77d74dd93f2c912676021a99155
- https://github.com/python/cpython/commit/5a4c4a033a4a54481be6870aa1896fad732555b5
- https://ubuntu.com/security/notices/USN-7951-1
Affected packages
Ubuntu:22.04:LTS
python3.10
Package
- Name
- python3.10
- Purl
- pkg:deb/ubuntu/python3.10@3.10.12-1~22.04.13?arch=source&distro=jammy
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed3.10.12-1~22.04.13
Affected versions
3.*
3.10.0-2
3.10.0-3
3.10.0-4
3.10.0-5
3.10.0-5build1
3.10.1-1
3.10.1-2
3.10.2-1
3.10.2-5
3.10.2-7
3.10.3-1
3.10.4-3
3.10.4-3ubuntu0.1
3.10.6-1~22.04
3.10.6-1~22.04.1
3.10.6-1~22.04.2
3.10.6-1~22.04.2ubuntu1
3.10.6-1~22.04.2ubuntu1.1
3.10.12-1~22.04.2
3.10.12-1~22.04.3
3.10.12-1~22.04.4
3.10.12-1~22.04.5
3.10.12-1~22.04.6
3.10.12-1~22.04.7
3.10.12-1~22.04.8
3.10.12-1~22.04.9
3.10.12-1~22.04.10
3.10.12-1~22.04.11
3.10.12-1~22.04.12
Ecosystem specific
{
"availability": "No subscription required",
"binaries": [
{
"binary_version": "3.10.12-1~22.04.13",
"binary_name": "idle-python3.10"
},
{
"binary_version": "3.10.12-1~22.04.13",
"binary_name": "libpython3.10"
},
{
"binary_version": "3.10.12-1~22.04.13",
"binary_name": "libpython3.10-dev"
},
{
"binary_version": "3.10.12-1~22.04.13",
"binary_name": "libpython3.10-minimal"
},
{
"binary_version": "3.10.12-1~22.04.13",
"binary_name": "libpython3.10-stdlib"
},
{
"binary_version": "3.10.12-1~22.04.13",
"binary_name": "libpython3.10-testsuite"
},
{
"binary_version": "3.10.12-1~22.04.13",
"binary_name": "python3.10"
},
{
"binary_version": "3.10.12-1~22.04.13",
"binary_name": "python3.10-dev"
},
{
"binary_version": "3.10.12-1~22.04.13",
"binary_name": "python3.10-examples"
},
{
"binary_version": "3.10.12-1~22.04.13",
"binary_name": "python3.10-full"
},
{
"binary_version": "3.10.12-1~22.04.13",
"binary_name": "python3.10-minimal"
},
{
"binary_version": "3.10.12-1~22.04.13",
"binary_name": "python3.10-nopie"
},
{
"binary_version": "3.10.12-1~22.04.13",
"binary_name": "python3.10-venv"
}
]
}Ubuntu:24.04:LTS
python3.12
Package
- Name
- python3.12
- Purl
- pkg:deb/ubuntu/python3.12@3.12.3-1ubuntu0.10?arch=source&distro=noble
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed3.12.3-1ubuntu0.10
Affected versions
3.*
3.12.0-1
3.12.0-5
3.12.0-6
3.12.0-7
3.12.1-2
3.12.2-1
3.12.2-4build3
3.12.2-4build4
3.12.2-5ubuntu3
3.12.3-1
3.12.3-1ubuntu0.1
3.12.3-1ubuntu0.2
3.12.3-1ubuntu0.3
3.12.3-1ubuntu0.4
3.12.3-1ubuntu0.5
3.12.3-1ubuntu0.6
3.12.3-1ubuntu0.7
3.12.3-1ubuntu0.8
3.12.3-1ubuntu0.9
Ecosystem specific
{
"availability": "No subscription required",
"binaries": [
{
"binary_version": "3.12.3-1ubuntu0.10",
"binary_name": "idle-python3.12"
},
{
"binary_version": "3.12.3-1ubuntu0.10",
"binary_name": "libpython3.12-dev"
},
{
"binary_version": "3.12.3-1ubuntu0.10",
"binary_name": "libpython3.12-minimal"
},
{
"binary_version": "3.12.3-1ubuntu0.10",
"binary_name": "libpython3.12-stdlib"
},
{
"binary_version": "3.12.3-1ubuntu0.10",
"binary_name": "libpython3.12-testsuite"
},
{
"binary_version": "3.12.3-1ubuntu0.10",
"binary_name": "libpython3.12t64"
},
{
"binary_version": "3.12.3-1ubuntu0.10",
"binary_name": "python3.12"
},
{
"binary_version": "3.12.3-1ubuntu0.10",
"binary_name": "python3.12-dev"
},
{
"binary_version": "3.12.3-1ubuntu0.10",
"binary_name": "python3.12-examples"
},
{
"binary_version": "3.12.3-1ubuntu0.10",
"binary_name": "python3.12-full"
},
{
"binary_version": "3.12.3-1ubuntu0.10",
"binary_name": "python3.12-minimal"
},
{
"binary_version": "3.12.3-1ubuntu0.10",
"binary_name": "python3.12-nopie"
},
{
"binary_version": "3.12.3-1ubuntu0.10",
"binary_name": "python3.12-venv"
}
]
}Ubuntu:25.10
python3.13
Package
- Name
- python3.13
- Purl
- pkg:deb/ubuntu/python3.13@3.13.7-1ubuntu0.2?arch=source&distro=questing
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed3.13.7-1ubuntu0.2
Affected versions
3.*
3.13.3-1
3.13.3-2
3.13.3-4
3.13.4-1
3.13.5-1
3.13.5-2
3.13.6-1
3.13.7-1
3.13.7-1ubuntu0.1
Ecosystem specific
{
"availability": "No subscription required",
"binaries": [
{
"binary_version": "3.13.7-1ubuntu0.2",
"binary_name": "idle-python3.13"
},
{
"binary_version": "3.13.7-1ubuntu0.2",
"binary_name": "libpython3.13"
},
{
"binary_version": "3.13.7-1ubuntu0.2",
"binary_name": "libpython3.13-dev"
},
{
"binary_version": "3.13.7-1ubuntu0.2",
"binary_name": "libpython3.13-minimal"
},
{
"binary_version": "3.13.7-1ubuntu0.2",
"binary_name": "libpython3.13-stdlib"
},
{
"binary_version": "3.13.7-1ubuntu0.2",
"binary_name": "libpython3.13-testsuite"
},
{
"binary_version": "3.13.7-1ubuntu0.2",
"binary_name": "python3.13"
},
{
"binary_version": "3.13.7-1ubuntu0.2",
"binary_name": "python3.13-dev"
},
{
"binary_version": "3.13.7-1ubuntu0.2",
"binary_name": "python3.13-examples"
},
{
"binary_version": "3.13.7-1ubuntu0.2",
"binary_name": "python3.13-full"
},
{
"binary_version": "3.13.7-1ubuntu0.2",
"binary_name": "python3.13-gdbm"
},
{
"binary_version": "3.13.7-1ubuntu0.2",
"binary_name": "python3.13-minimal"
},
{
"binary_version": "3.13.7-1ubuntu0.2",
"binary_name": "python3.13-nopie"
},
{
"binary_version": "3.13.7-1ubuntu0.2",
"binary_name": "python3.13-tk"
},
{
"binary_version": "3.13.7-1ubuntu0.2",
"binary_name": "python3.13-venv"
}
]
}python3.14
Package
- Name
- python3.14
- Purl
- pkg:deb/ubuntu/python3.14@3.14.0-1ubuntu0.1?arch=source&distro=questing
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed3.14.0-1ubuntu0.1
Affected versions
3.*
3.14.0~a7-0ubuntu1
3.14.0~b1-1
3.14.0~b3-1
3.14.0~rc1-1
3.14.0~rc2-1
3.14.0~rc3-1
3.14.0-1
Ecosystem specific
{
"availability": "No subscription required",
"binaries": [
{
"binary_version": "3.14.0-1ubuntu0.1",
"binary_name": "idle-python3.14"
},
{
"binary_version": "3.14.0-1ubuntu0.1",
"binary_name": "libpython3.14"
},
{
"binary_version": "3.14.0-1ubuntu0.1",
"binary_name": "libpython3.14-dev"
},
{
"binary_version": "3.14.0-1ubuntu0.1",
"binary_name": "libpython3.14-minimal"
},
{
"binary_version": "3.14.0-1ubuntu0.1",
"binary_name": "libpython3.14-stdlib"
},
{
"binary_version": "3.14.0-1ubuntu0.1",
"binary_name": "libpython3.14-testsuite"
},
{
"binary_version": "3.14.0-1ubuntu0.1",
"binary_name": "python3.14"
},
{
"binary_version": "3.14.0-1ubuntu0.1",
"binary_name": "python3.14-dev"
},
{
"binary_version": "3.14.0-1ubuntu0.1",
"binary_name": "python3.14-examples"
},
{
"binary_version": "3.14.0-1ubuntu0.1",
"binary_name": "python3.14-full"
},
{
"binary_version": "3.14.0-1ubuntu0.1",
"binary_name": "python3.14-gdbm"
},
{
"binary_version": "3.14.0-1ubuntu0.1",
"binary_name": "python3.14-minimal"
},
{
"binary_version": "3.14.0-1ubuntu0.1",
"binary_name": "python3.14-nopie"
},
{
"binary_version": "3.14.0-1ubuntu0.1",
"binary_name": "python3.14-tk"
},
{
"binary_version": "3.14.0-1ubuntu0.1",
"binary_name": "python3.14-venv"
}
]
}Ubuntu:Pro:18.04:LTS
python3.8
Package
- Name
- python3.8
- Purl
- pkg:deb/ubuntu/python3.8@3.8.0-3ubuntu1~18.04.2+esm8?arch=source&distro=esm-apps/bionic
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed3.8.0-3ubuntu1~18.04.2+esm8
Affected versions
3.*
3.8.0-3~18.04
3.8.0-3~18.04.1
3.8.0-3ubuntu1~18.04.2
3.8.0-3ubuntu1~18.04.2+esm1
3.8.0-3ubuntu1~18.04.2+esm2
3.8.0-3ubuntu1~18.04.2+esm3
3.8.0-3ubuntu1~18.04.2+esm4
3.8.0-3ubuntu1~18.04.2+esm5
3.8.0-3ubuntu1~18.04.2+esm6
3.8.0-3ubuntu1~18.04.2+esm7
Ecosystem specific
{
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
"binaries": [
{
"binary_version": "3.8.0-3ubuntu1~18.04.2+esm8",
"binary_name": "idle-python3.8"
},
{
"binary_version": "3.8.0-3ubuntu1~18.04.2+esm8",
"binary_name": "libpython3.8"
},
{
"binary_version": "3.8.0-3ubuntu1~18.04.2+esm8",
"binary_name": "libpython3.8-dev"
},
{
"binary_version": "3.8.0-3ubuntu1~18.04.2+esm8",
"binary_name": "libpython3.8-minimal"
},
{
"binary_version": "3.8.0-3ubuntu1~18.04.2+esm8",
"binary_name": "libpython3.8-stdlib"
},
{
"binary_version": "3.8.0-3ubuntu1~18.04.2+esm8",
"binary_name": "libpython3.8-testsuite"
},
{
"binary_version": "3.8.0-3ubuntu1~18.04.2+esm8",
"binary_name": "python3.8"
},
{
"binary_version": "3.8.0-3ubuntu1~18.04.2+esm8",
"binary_name": "python3.8-dev"
},
{
"binary_version": "3.8.0-3ubuntu1~18.04.2+esm8",
"binary_name": "python3.8-examples"
},
{
"binary_version": "3.8.0-3ubuntu1~18.04.2+esm8",
"binary_name": "python3.8-minimal"
},
{
"binary_version": "3.8.0-3ubuntu1~18.04.2+esm8",
"binary_name": "python3.8-venv"
}
]
}Ubuntu:Pro:20.04:LTS
python3.8
Package
- Name
- python3.8
- Purl
- pkg:deb/ubuntu/python3.8@3.8.10-0ubuntu1~20.04.18+esm4?arch=source&distro=esm-infra/focal
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed3.8.10-0ubuntu1~20.04.18+esm4
Affected versions
3.*
3.8.0-1
3.8.0-2
3.8.0-3
3.8.0-4
3.8.0-5
3.8.1-2ubuntu3
3.8.2~rc1-1ubuntu1
3.8.2-1
3.8.2-1ubuntu1
3.8.2-1ubuntu1.1
3.8.2-1ubuntu1.2
3.8.5-1~20.04
3.8.5-1~20.04.2
3.8.5-1~20.04.3
3.8.10-0ubuntu1~20.04
3.8.10-0ubuntu1~20.04.1
3.8.10-0ubuntu1~20.04.2
3.8.10-0ubuntu1~20.04.4
3.8.10-0ubuntu1~20.04.5
3.8.10-0ubuntu1~20.04.6
3.8.10-0ubuntu1~20.04.7
3.8.10-0ubuntu1~20.04.8
3.8.10-0ubuntu1~20.04.9
3.8.10-0ubuntu1~20.04.10
3.8.10-0ubuntu1~20.04.11
3.8.10-0ubuntu1~20.04.12
3.8.10-0ubuntu1~20.04.13
3.8.10-0ubuntu1~20.04.14
3.8.10-0ubuntu1~20.04.15
3.8.10-0ubuntu1~20.04.16
3.8.10-0ubuntu1~20.04.17
3.8.10-0ubuntu1~20.04.18
3.8.10-0ubuntu1~20.04.18+esm1
3.8.10-0ubuntu1~20.04.18+esm2
3.8.10-0ubuntu1~20.04.18+esm3
Ecosystem specific
{
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
"binaries": [
{
"binary_version": "3.8.10-0ubuntu1~20.04.18+esm4",
"binary_name": "idle-python3.8"
},
{
"binary_version": "3.8.10-0ubuntu1~20.04.18+esm4",
"binary_name": "libpython3.8"
},
{
"binary_version": "3.8.10-0ubuntu1~20.04.18+esm4",
"binary_name": "libpython3.8-dev"
},
{
"binary_version": "3.8.10-0ubuntu1~20.04.18+esm4",
"binary_name": "libpython3.8-minimal"
},
{
"binary_version": "3.8.10-0ubuntu1~20.04.18+esm4",
"binary_name": "libpython3.8-stdlib"
},
{
"binary_version": "3.8.10-0ubuntu1~20.04.18+esm4",
"binary_name": "libpython3.8-testsuite"
},
{
"binary_version": "3.8.10-0ubuntu1~20.04.18+esm4",
"binary_name": "python3.8"
},
{
"binary_version": "3.8.10-0ubuntu1~20.04.18+esm4",
"binary_name": "python3.8-dev"
},
{
"binary_version": "3.8.10-0ubuntu1~20.04.18+esm4",
"binary_name": "python3.8-examples"
},
{
"binary_version": "3.8.10-0ubuntu1~20.04.18+esm4",
"binary_name": "python3.8-full"
},
{
"binary_version": "3.8.10-0ubuntu1~20.04.18+esm4",
"binary_name": "python3.8-minimal"
},
{
"binary_version": "3.8.10-0ubuntu1~20.04.18+esm4",
"binary_name": "python3.8-venv"
}
]
}python3.9
Package
- Name
- python3.9
- Purl
- pkg:deb/ubuntu/python3.9@3.9.5-3ubuntu0~20.04.1+esm8?arch=source&distro=esm-apps/focal
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed3.9.5-3ubuntu0~20.04.1+esm8
Affected versions
3.*
3.9.0~rc1-1~20.04
3.9.0-5~20.04
3.9.5-3~20.04.1
3.9.5-3ubuntu0~20.04.1
3.9.5-3ubuntu0~20.04.1+esm1
3.9.5-3ubuntu0~20.04.1+esm2
3.9.5-3ubuntu0~20.04.1+esm3
3.9.5-3ubuntu0~20.04.1+esm4
3.9.5-3ubuntu0~20.04.1+esm5
3.9.5-3ubuntu0~20.04.1+esm6
3.9.5-3ubuntu0~20.04.1+esm7
Ecosystem specific
{
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
"binaries": [
{
"binary_version": "3.9.5-3ubuntu0~20.04.1+esm8",
"binary_name": "idle-python3.9"
},
{
"binary_version": "3.9.5-3ubuntu0~20.04.1+esm8",
"binary_name": "libpython3.9"
},
{
"binary_version": "3.9.5-3ubuntu0~20.04.1+esm8",
"binary_name": "libpython3.9-dev"
},
{
"binary_version": "3.9.5-3ubuntu0~20.04.1+esm8",
"binary_name": "libpython3.9-minimal"
},
{
"binary_version": "3.9.5-3ubuntu0~20.04.1+esm8",
"binary_name": "libpython3.9-stdlib"
},
{
"binary_version": "3.9.5-3ubuntu0~20.04.1+esm8",
"binary_name": "libpython3.9-testsuite"
},
{
"binary_version": "3.9.5-3ubuntu0~20.04.1+esm8",
"binary_name": "python3.9"
},
{
"binary_version": "3.9.5-3ubuntu0~20.04.1+esm8",
"binary_name": "python3.9-dev"
},
{
"binary_version": "3.9.5-3ubuntu0~20.04.1+esm8",
"binary_name": "python3.9-examples"
},
{
"binary_version": "3.9.5-3ubuntu0~20.04.1+esm8",
"binary_name": "python3.9-full"
},
{
"binary_version": "3.9.5-3ubuntu0~20.04.1+esm8",
"binary_name": "python3.9-minimal"
},
{
"binary_version": "3.9.5-3ubuntu0~20.04.1+esm8",
"binary_name": "python3.9-venv"
}
]
}Ubuntu:Pro:22.04:LTS
python3.11
Package
- Name
- python3.11
- Purl
- pkg:deb/ubuntu/python3.11@3.11.0~rc1-1~22.04.1~esm7?arch=source&distro=esm-apps/jammy
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed3.11.0~rc1-1~22.04.1~esm7
Affected versions
3.*
3.11.0~rc1-1~22.04
3.11.0~rc1-1~22.04.1~esm1
3.11.0~rc1-1~22.04.1~esm2
3.11.0~rc1-1~22.04.1~esm3
3.11.0~rc1-1~22.04.1~esm4
3.11.0~rc1-1~22.04.1~esm5
3.11.0~rc1-1~22.04.1~esm6
Ecosystem specific
{
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
"binaries": [
{
"binary_version": "3.11.0~rc1-1~22.04.1~esm7",
"binary_name": "idle-python3.11"
},
{
"binary_version": "3.11.0~rc1-1~22.04.1~esm7",
"binary_name": "libpython3.11"
},
{
"binary_version": "3.11.0~rc1-1~22.04.1~esm7",
"binary_name": "libpython3.11-dev"
},
{
"binary_version": "3.11.0~rc1-1~22.04.1~esm7",
"binary_name": "libpython3.11-minimal"
},
{
"binary_version": "3.11.0~rc1-1~22.04.1~esm7",
"binary_name": "libpython3.11-stdlib"
},
{
"binary_version": "3.11.0~rc1-1~22.04.1~esm7",
"binary_name": "libpython3.11-testsuite"
},
{
"binary_version": "3.11.0~rc1-1~22.04.1~esm7",
"binary_name": "python3.11"
},
{
"binary_version": "3.11.0~rc1-1~22.04.1~esm7",
"binary_name": "python3.11-dev"
},
{
"binary_version": "3.11.0~rc1-1~22.04.1~esm7",
"binary_name": "python3.11-examples"
},
{
"binary_version": "3.11.0~rc1-1~22.04.1~esm7",
"binary_name": "python3.11-full"
},
{
"binary_version": "3.11.0~rc1-1~22.04.1~esm7",
"binary_name": "python3.11-minimal"
},
{
"binary_version": "3.11.0~rc1-1~22.04.1~esm7",
"binary_name": "python3.11-nopie"
},
{
"binary_version": "3.11.0~rc1-1~22.04.1~esm7",
"binary_name": "python3.11-venv"
}
]
}