Bug 2532942 - CVE-2026-89266 SDL2_sound: stb_vorbis: Denial of Service due to heap buffer overflow [fedora-all]
Summary: CVE-2026-89266 SDL2_sound: stb_vorbis: Denial of Service due to heap buffer o...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora
Classification: Fedora
Component: SDL2_sound
Version: rawhide
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: ---
Assignee: Dominik 'Rathann' Mierzejewski
QA Contact:
URL:
Whiteboard: {"flaws": ["502e9c7d-c7e1-45c2-87e4-a...
Depends On:
Blocks: CVE-2026-89266
TreeView+ depends on / blocked
 
Reported: 2026-09-14 07:27 UTC by Vladimir Vasilev
Modified: 2026-10-13 09:18 UTC (History)
2 users (show)

Fixed In Version: SDL2_sound-2.0.6-1.fc45,SDL2_sound-2.0.6-1.fc44,SDL2_sound-2.0.6-1.fc43
Clone Of:
Environment:
Last Closed: 2026-10-13 09:18:56 UTC
Type: ---
Embargoed:


Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Github nothings stb pull 1960 0 None open [stb_vorbis] Increase setup_malloc size parameter to uint64. 2026-10-13 09:18:56 UTC

Description Vladimir Vasilev 2026-09-14 07:27:56 UTC
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

stb_vorbis through 1.22 contains a heap buffer overflow in start_decoder() where the codebook multiplicands allocation size is truncated from size_t to int. Attackers can craft a malicious Ogg Vorbis file with large entries and dimensions values to trigger out-of-bounds writes, causing process crashes or heap corruption.

Comment 1 Dominik 'Rathann' Mierzejewski 2026-10-13 09:18:56 UTC
This is fixed in:
SDL_sound 2.0.6: https://github.com/icculus/SDL_sound/commit/1e4b1160fb40c4adfa51af960e3a9c0c93cc26d2

stb upstream PR link added, too.


Note You need to log in before you can comment on or make changes to this bug.