OSV-2021-1205 Heap-buffer-overflow in backup_lpf
A heap-buffer-overflow in the dav1d AV1 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-2021-1205?
OSV-2021-1205 is a memory corruption vulnerability in dav1d, published on 6 Sep 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=38152
Crash type: Heap-buffer-overflow WRITE {*}
Crash state:
backup_lpf
dav1d_lr_copy_lpf_16bpc
dav1d_filter_sbrow_deblock_rows_16bpc
Which versions are affected by OSV-2021-1205?
1 open source package ship an affected version, including dav1d.
| Package | Affected | Fixed in |
|---|---|---|
dav1d OSS-Fuzz | All versions | None |
How do I fix OSV-2021-1205?
No fix has been published for OSV-2021-1205 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-2021-1205 being exploited?
There is no known exploitation of OSV-2021-1205 in the wild and no public exploit code.