CVE-2024-56431
9.8
CRITICAL
CVSS 3.1
EPSS 1.8%
Description
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.
How to fix CVE-2024-56431
To remediate CVE-2024-56431, upgrade the affected package to a fixed version below.
- Debian/libtheora—upgrade to 1.2.0~alpha1+dfsg-6 or later
Is CVE-2024-56431 being exploited?
Low — EPSS is 1.8%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 1.2.0~alpha1+dfsg-6
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |