OSV-2022-13 Heap-use-after-free in read_data_compressed

Not scored Published

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.

PackageAffectedFixed in
libarchive OSS-FuzzAll versionsNone

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.

Sources

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