OSV-2020-2212 Heap-buffer-overflow in ih264d_fill_bs1_16x16mb_pslice
A heap buffer overflow in the H.264 decoder allows attackers to cause denial of service or potentially execute code 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-2020-2212?
OSV-2020-2212 is a memory corruption vulnerability in libavc, published on 30 Nov 2020. 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=28039
Crash type: Heap-buffer-overflow READ 8
Crash state:
ih264d_fill_bs1_16x16mb_pslice
ih264d_compute_bs_non_mbaff_thread
ih264d_recon_deblk_slice
Which versions are affected by OSV-2020-2212?
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-2020-2212?
No fix has been published for OSV-2020-2212 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-2020-2212 being exploited?
There is no known exploitation of OSV-2020-2212 in the wild and no public exploit code.