OSV-2022-144 Segv on unknown address in onig_free_body
A segmentation fault in the Oniguruma regex library can cause a denial of service when processing crafted input.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Not stated
- Victim action needed
- Not needed
- Fix
- None listed
What is OSV-2022-144?
OSV-2022-144 is a memory corruption vulnerability in fluent-bit, published on 13 Feb 2022.
Official description
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=44603
Crash type: Segv on unknown address Crash state: onig_free_body onig_new flb_regex_create
Which versions are affected by OSV-2022-144?
1 open source package ship an affected version, including fluent-bit.
| Package | Affected | Fixed in |
|---|---|---|
fluent-bit OSS-Fuzz | All versions | None |
How do I fix OSV-2022-144?
No fix has been published for OSV-2022-144 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-2022-144 being exploited?
There is no known exploitation of OSV-2022-144 in the wild and no public exploit code.