USN-7350-1: UnRAR vulnerabilities

Releases

• Ubuntu 22.04 LTS
• Ubuntu 20.04 LTS

Packages

• unrar-nonfree - Unarchiver for .rar files

Details

It was discovered that UnRAR incorrectly handled certain paths. If a user
or automated system were tricked into extracting a specially crafted RAR
archive, a remote attacker could possibly use this issue to write arbitrary
files outside of the targeted directory. (CVE-2022-30333, CVE-2022-48579)

It was discovered that UnRAR incorrectly handled certain recovery volumes.
If a user or automated system were tricked into extracting a specially
crafted RAR archive, a remote attacker could possibly use this issue to
execute arbitrary code. (CVE-2023-40477)

Siddharth Dushantha discovered that UnRAR incorrectly handled ANSI escape
sequences when writing screen output. If a user or automated system were
tricked into processing a specially crafted RAR archive, a remote attacker
could possibly use this issue to spoof screen output or cause a denial of
service. (CVE-2024-33899)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 22.04

• libunrar5 - 1:6.1.5-1ubuntu0.1
• unrar - 1:6.1.5-1ubuntu0.1

Ubuntu 20.04

• libunrar5 - 1:5.6.6-2ubuntu0.1
• unrar - 1:5.6.6-2ubuntu0.1

In general, a standard system update will make all the necessary changes.

References

• CVE-2024-33899
• CVE-2022-48579
• CVE-2022-30333
• CVE-2023-40477

Related notices

• USN-6569-1
• USN-7349-1