USN-5921-1: rsync vulnerabilities

Releases

• Ubuntu 22.10
• Ubuntu 22.04 LTS
• Ubuntu 20.04 LTS
• Ubuntu 18.04 ESM

Packages

• rsync - fast, versatile, remote (and local) file-copying tool

Details

Koen van Hove discovered that the rsync client incorrectly validated
filenames returned by servers. If a user or automated system were tricked
into connecting to a malicious server, a remote attacker could use this
issue to write arbitrary files, and possibly escalate privileges.

Update instructions

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

Ubuntu 22.10

• rsync - 3.2.7-0ubuntu0.22.10.1

Ubuntu 22.04

• rsync - 3.2.7-0ubuntu0.22.04.2

Ubuntu 20.04

• rsync - 3.1.3-8ubuntu0.5

Ubuntu 18.04

• rsync - 3.1.2-2.1ubuntu1.6

On Ubuntu 22.04 LTS and Ubuntu 22.10, this update uses a new upstream
release, which includes additional bug fixes. In general, a standard system
update will make all the necessary changes.

References

• CVE-2022-29154