OSV-2022-299 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-2022-299?

OSV-2022-299 is an use after free vulnerability in libarchive, published on 4 Apr 2022.

Official description

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=46279

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-2022-299?

1 open source package ship an affected version, including libarchive.

PackageAffectedFixed in
libarchive OSS-FuzzAll versionsNone

How do I fix OSV-2022-299?

No fix has been published for OSV-2022-299 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-2022-299 being exploited?

There is no known exploitation of OSV-2022-299 in the wild and no public exploit code.

Sources

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