Ubuntu 20.04 LTS USN-6570-1: Severe RCE vulnerability in libfreetype

ubuntu

January 8, 2024

Several security issues were fixed in libclamunrar.

Summary

Several security issues were fixed in libclamunrar.

Software Description:

- 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)

Topics Covered

security advisory security issue remote code execution critical threat ubuntu libclamunrar

Update Instructions

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

Ubuntu 23.10:
   libclamunrar11                  1.0.4-0ubuntu0.23.10.1

Ubuntu 23.04:
   libclamunrar9                   0.103.11-0ubuntu0.23.04.1

Ubuntu 22.04 LTS:
   libclamunrar9                   0.103.11-0ubuntu0.22.04.1

Ubuntu 20.04 LTS:
   libclamunrar9                   0.103.11-0ubuntu0.20.04.1

This update uses a new upstream release, which includes additional bug
fixes. In general, a standard system update will make all the necessary
changes.