OSV-2021-467 Heap-buffer-overflow in void mc_chroma<unsigned short>
A heap buffer overflow in the video decoding library allows attackers to execute arbitrary code or cause denial of service via crafted media files.
- 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-2021-467?
OSV-2021-467 is a memory corruption vulnerability in kimageformats, published on 1 Mar 2021. 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=31518
Crash type: Heap-buffer-overflow READ 2
Crash state:
void mc_chroma<unsigned short>
generate_inter_prediction_samples
decode_prediction_unit
Which versions are affected by OSV-2021-467?
1 open source package ship an affected version, including kimageformats.
| Package | Affected | Fixed in |
|---|---|---|
kimageformats OSS-Fuzz | All versions | None |
How do I fix OSV-2021-467?
No fix has been published for OSV-2021-467 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is OSV-2021-467 being exploited?
There is no known exploitation of OSV-2021-467 in the wild and no public exploit code.