CVE-2025-13837

Publication date 1 December 2025

Last updated 5 February 2026

Ubuntu priority

Medium

Why this priority?

Description

When loading a plist file, the plistlib module reads data in size specified by the file itself, meaning a malicious file can cause OOM and DoS issues

Read the notes from the security team

Status

Package Ubuntu Release Status
python2.7 25.10 questing Not in release
25.04 plucky Not in release
24.04 LTS noble Not in release
22.04 LTS jammy Ignored changes too intrusive
20.04 LTS focal Ignored changes too intrusive
18.04 LTS bionic Ignored changes too intrusive
16.04 LTS xenial Ignored changes too intrusive
14.04 LTS trusty Ignored changes too intrusive
python3.4 25.10 questing Not in release
25.04 plucky Not in release
24.04 LTS noble Not in release
22.04 LTS jammy Not in release
14.04 LTS trusty Ignored changes too intrusive
python3.5 25.10 questing Not in release
25.04 plucky Not in release
24.04 LTS noble Not in release
22.04 LTS jammy Not in release
16.04 LTS xenial
Fixed 3.5.2-2ubuntu0~16.04.13+esm21
14.04 LTS trusty
Fixed 3.5.2-2ubuntu0~16.04.4~14.04.1+esm9
python3.6 25.10 questing Not in release
25.04 plucky Not in release
24.04 LTS noble Not in release
22.04 LTS jammy Not in release
18.04 LTS bionic
Fixed 3.6.9-1~18.04ubuntu1.13+esm8
python3.7 25.10 questing Not in release
25.04 plucky Not in release
24.04 LTS noble Not in release
22.04 LTS jammy Not in release
18.04 LTS bionic
Fixed 3.7.5-2ubuntu1~18.04.2+esm9
python3.8 25.10 questing Not in release
25.04 plucky Not in release
24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal
Fixed 3.8.10-0ubuntu1~20.04.18+esm5
18.04 LTS bionic
Fixed 3.8.0-3ubuntu1~18.04.2+esm9
python3.9 25.10 questing Not in release
25.04 plucky Not in release
24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal
Fixed 3.9.5-3ubuntu0~20.04.1+esm9
python3.10 25.10 questing Not in release
25.04 plucky Not in release
24.04 LTS noble Not in release
22.04 LTS jammy
Fixed 3.10.12-1~22.04.14
python3.11 25.10 questing Not in release
25.04 plucky Not in release
24.04 LTS noble Not in release
22.04 LTS jammy
Fixed 3.11.0~rc1-1~22.04.1~esm8
python3.12 25.10 questing Not in release
25.04 plucky Not in release
24.04 LTS noble
Fixed 3.12.3-1ubuntu0.11
22.04 LTS jammy Not in release
python3.13 25.10 questing
Fixed 3.13.7-1ubuntu0.3
25.04 plucky Ignored end of life, was needs-triage
24.04 LTS noble Not in release
22.04 LTS jammy Not in release
python3.14 25.10 questing
Fixed 3.14.0-1ubuntu0.2
25.04 plucky Not in release
24.04 LTS noble Not in release
22.04 LTS jammy Not in release

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Notes

hlibk

The fix for older python versions requires backporting a number of additional commits, which are error prone and could introduce regressions or change the underlying behavior.

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
python3.10
python3.11
python3.12
python3.13
python3.14

References

Related Ubuntu Security Notices (USN)

    • USN-8018-1
    • Python vulnerabilities
    • 5 February 2026

Other references