USN-6569-1: libclamunrar vulnerabilities
8 January 2024
Several security issues were fixed in libclamunrar.
Releases
Packages
- libclamunrar - anti-virus utility for Unix - unrar support
Details
it was discovered that libclamunrar incorrectly handled directories when
extracting RAR archives. A remote attacker could possibly use this issue to
overwrite arbitrary files and execute arbitrary code. This issue only
affected Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, and Ubuntu 23.04.
(CVE-2022-30333)
It was discovered that libclamunrar incorrectly validated certain
structures when extracting RAR archives. A remote attacker could possibly
use this issue to execute arbitrary code. (CVE-2023-40477)
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 23.10
Ubuntu 23.04
Ubuntu 22.04
Ubuntu 20.04
This update uses a new upstream release, which includes additional bug
fixes. In general, a standard system update will make all the necessary
changes.