CVE-2024-56431: oc_huff_tree_unpack in huffdec.c in libtheora in Theora through 1.0 7180717 has an invalid negative left shift.

Description

oc_huff_tree_unpack in huffdec.c in libtheora in Theora through 1.0 7180717 has an invalid negative left shift.

Classification

CVE ID: CVE-2024-56431

Affected Products

Vendor: n/a

Product: n/a

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.05% (probability of being exploited)

EPSS Percentile: 17.88% (scored less or equal to compared to others)

EPSS Date: 2025-02-04 (when was this score calculated)

References

https://github.com/xiph/theora/issues/17#issuecomment-2480630603
https://github.com/xiph/theora/blob/7180717276af1ebc7da15c83162d6c5d6203aabf/lib/huffdec.c#L193
https://github.com/UnionTech-Software/libtheora-CVE-2024-56431-PoC

Timeline