Heap Overflow in FFmpeg EXIF

29 points | by retr0reg 2 hours ago

3 comments

  • ComputerGuru 2 hours ago

    Nice find.

    (I don’t see what this being reported during the Christmas holidays has to do with not revealing the disclosure and patch timeline, a “note that delays should be attributed to Christmas” would have sufficed.)

  • renewiltord 11 minutes ago

    Hmm interesting. You can see recent edits to the file here https://github.com/FFmpeg/FFmpeg/commits/master/libavcodec/e...

    This specific issue is fixed here https://github.com/FFmpeg/FFmpeg/commit/4bfac71ecd96488dd2dc...

  • rvz an hour ago

    > Pwno is a AI cybersecurity startup...

    We all know that LLMs were used to find these vulnerabilities, specifically on high impact projects. That's fine.

    However, my only question is who actually provided the patch: The maintainers of FFmpeg? The LLM that is being used? Or the security researchers themselves after finding the issue?

    It seems that these two statements about the issue are in conflict:

    > We found and patched 6 memory vulnerabilities in FFmpeg in two days.

    > Dec, 2025: avcodec/exif maintainer provided patch.