OSV-2022-13 Heap-use-after-free in read_data_compressed
A heap-use-after-free vulnerability in libarchive's RAR decompression allows attackers to cause crashes or potentially execute code via malicious archives.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Not stated
- Victim action needed
- Not needed
- Fix
- None listed
What is OSV-2022-13?
OSV-2022-13 is an use after free vulnerability in libarchive, published on 6 Jan 2022.
Official description
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=43324
Crash type: Heap-use-after-free READ 4
Crash state:
read_data_compressed
archive_read_format_rar_read_data
_archive_read_data_block
Which versions are affected by OSV-2022-13?
1 open source package ship an affected version, including libarchive.
| Package | Affected | Fixed in |
|---|---|---|
libarchive OSS-Fuzz | All versions | None |
How do I fix OSV-2022-13?
No fix has been published for OSV-2022-13 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-2022-13 being exploited?
There is no known exploitation of OSV-2022-13 in the wild and no public exploit code.