OSV-2021-728 UNKNOWN WRITE in _fini
An unknown write vulnerability in the _fini function of an OSS-Fuzz library could allow attackers to cause memory corruption, potentially leading to code execution or denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not stated
- Attackable
- Not stated
- Victim action needed
- Not stated
- Fix
- None listed
What is OSV-2021-728?
OSV-2021-728 is a memory corruption vulnerability in wasm3, published on 5 May 2021.
Official description
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=33944
Crash type: UNKNOWN WRITE
Crash state:
_fini
Which versions are affected by OSV-2021-728?
1 open source package ship an affected version, including wasm3.
| Package | Affected | Fixed in |
|---|---|---|
wasm3 OSS-Fuzz | All versions | None |
How do I fix OSV-2021-728?
No fix has been published for OSV-2021-728 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-2021-728 being exploited?
There is no known exploitation of OSV-2021-728 in the wild and no public exploit code.