CVE-2025-59728

Publication date 6 October 2025

Last updated 28 January 2026

Ubuntu priority

Description

When calculating the content path in handling of MPEG-DASH manifests, there's an out-of-bounds NUL-byte write one byte past the end of the buffer.When we call xmlNodeGetContent below [0], it returns a buffer precisely allocated to match the string length, using strdup internally. If this buffer is not an empty string, it is assigned to root_url at [1].If the last (non-NUL) byte in this buffer is not '/' then we append '/' in-place at [2]. This will write two bytes into the buffer, starting at the last valid byte in the buffer, writing the NUL byte beyond the end of the allocated buffer. We recommend upgrading to version 8.0 or beyond.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
libav	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	Needs evaluation
ffmpeg	25.10 questing	Fixed 7:7.1.1-1ubuntu4.2
	25.04 plucky	Ignored end of life, was needs-triage
	24.04 LTS noble	Fixed 7:6.1.1-3ubuntu5+esm7
	22.04 LTS jammy	Fixed 7:4.4.2-0ubuntu0.22.04.1+esm11
	20.04 LTS focal	Fixed 7:4.2.7-0ubuntu0.1+esm12
	18.04 LTS bionic	Not affected
	16.04 LTS xenial	Not affected

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Notes

rodrigo-zaiden

Google Big Sleep identifier: BIGSLEEP-433502298

Patch details

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

Package	Patch details
ffmpeg	Upstream: ce0a655

References

Related Ubuntu Security Notices (USN)

USN-7982-1
FFmpeg vulnerabilities
27 January 2026