OSV-2023-48 Global-buffer-overflow in isvce_write_coeff4x4_cavlc
A global buffer overflow in the video encoding library allows attackers to cause denial of service or potentially execute code via crafted input.
- 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-2023-48?
OSV-2023-48 is a memory corruption vulnerability in libavc, published on 4 Feb 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=55643
Crash type: Global-buffer-overflow READ 1
Crash state:
isvce_write_coeff4x4_cavlc
isvce_encode_residue
isvce_write_pslice_mb_cavlc
Which versions are affected by OSV-2023-48?
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-2023-48?
No fix has been published for OSV-2023-48 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-2023-48 being exploited?
There is no known exploitation of OSV-2023-48 in the wild and no public exploit code.