OSV-2023-95 Use-of-uninitialized-value in isvcd_interpolate_residual_sse42
An attacker can cause a denial of service via a use-of-uninitialized-value bug in the video codec library's SSE4.2 interpolation routine.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is OSV-2023-95?
OSV-2023-95 is an use after free vulnerability in libavc, published on 22 Feb 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=56176
Crash type: Use-of-uninitialized-value
Crash state:
isvcd_interpolate_residual_sse42
isvcd_residual_samp_mb
isvcd_process_residual_resample_mb
Which versions are affected by OSV-2023-95?
1 open source package ship an affected version, including libavc.
| Package | Affected | Fixed in |
|---|---|---|
libavc OSS-Fuzz | All versions | None |
How do I fix OSV-2023-95?
No fix has been published for OSV-2023-95 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is OSV-2023-95 being exploited?
There is no known exploitation of OSV-2023-95 in the wild and no public exploit code.