OSV-2020-370 Heap-use-after-free in ih264_inter_pred_luma_horz_hpel_vert_qpel_ssse3
A heap-use-after-free in the H.264 decoder 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-2020-370?
OSV-2020-370 is an use after free vulnerability in libavc, published on 1 Jul 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=18595
Crash type: Heap-use-after-free READ 16
Crash state:
ih264_inter_pred_luma_horz_hpel_vert_qpel_ssse3
ih264d_motion_compensate_mp
ih264d_decode_recon_tfr_nmb
Which versions are affected by OSV-2020-370?
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-2020-370?
No fix has been published for OSV-2020-370 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-2020-370 being exploited?
There is no known exploitation of OSV-2020-370 in the wild and no public exploit code.