OSV-2022-94 Heap-buffer-overflow in cli_strlcat
A heap buffer overflow in the YARA library's string concatenation function allows attackers to cause crashes or potentially execute arbitrary code via crafted rules.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Not stated
- Victim action needed
- Not needed
- Fix
- None listed
What is OSV-2022-94?
OSV-2022-94 is a memory corruption vulnerability in clamav, published on 27 Jan 2022.
Official description
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=44087
Crash type: Heap-buffer-overflow WRITE 1 Crash state: cli_strlcat yara_yyparse yr_lex_parse_rules_file
Which versions are affected by OSV-2022-94?
1 open source package ship an affected version, including clamav.
| Package | Affected | Fixed in |
|---|---|---|
clamav OSS-Fuzz | All versions | None |
How do I fix OSV-2022-94?
No fix has been published for OSV-2022-94 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-2022-94 being exploited?
There is no known exploitation of OSV-2022-94 in the wild and no public exploit code.