critical9.8
CVE-2024-56431
oc_huff_tree_unpack in huffdec.c in libtheora in Theora through 1.0 7180717 has an invalid negative left shift.
Impact
oc_huff_tree_unpack in huffdec.c in libtheora in Theora through 1.0 7180717 has an invalid negative left shift. NOTE: this is disputed by third parties because there is no evidence of a security impact, e.g., an application would not crash.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Xiph | Theora | before 1.2.0 |
Weakness classification
References
- NVD record
- CVE.org record
- https://github.com/UnionTech-Software/libtheora-CVE-2024-56431-PoC
- https://github.com/xiph/theora/blob/7180717276af1ebc7da15c83162d6c5d6203aabf/lib/huffdec.c#L193
- https://github.com/xiph/theora/issues/17#issuecomment-2480630603
- https://www.openwall.com/lists/oss-security/2025/04/25/6
- http://www.openwall.com/lists/oss-security/2025/04/25/4
- http://www.openwall.com/lists/oss-security/2025/04/25/6