OSV-2023-303 Heap-use-after-free in picture_copy_props
A heap-use-after-free vulnerability 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-2023-303?
OSV-2023-303 is an use after free vulnerability in dav1d, published on 13 Apr 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=57927
Crash type: Heap-use-after-free READ {*}
Crash state:
picture_copy_props
dav1d_picture_alloc_copy
dav1d_apply_grain
Which versions are affected by OSV-2023-303?
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-2023-303?
No fix has been published for OSV-2023-303 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-2023-303 being exploited?
There is no known exploitation of OSV-2023-303 in the wild and no public exploit code.