========================================================================= Ubuntu Security Notice USN-4482-1 September 01, 2020 ark vulnerability ========================================================================= A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS Summary: Ark could be made to write files as your login if it opened a specially crafted file. Software Description: - ark: archive utility Details: Fabian Vogt discovered that Ark incorrectly handled symbolic links in tar archive files. An attacker could use this to construct a malicious tar archive that, when opened, would create files outside the extraction directory. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 20.04 LTS: ark 4:19.12.3-0ubuntu1.2 Ubuntu 18.04 LTS: ark 4:17.12.3-0ubuntu1.2 Ubuntu 16.04 LTS: ark 4:15.12.3-0ubuntu1.2 In general, a standard system update will make all the necessary changes. References: https://usn.ubuntu.com/4482-1 CVE-2020-24654 Package Information: https://launchpad.net/ubuntu/+source/ark/4:19.12.3-0ubuntu1.2 https://launchpad.net/ubuntu/+source/ark/4:17.12.3-0ubuntu1.2 https://launchpad.net/ubuntu/+source/ark/4:15.12.3-0ubuntu1.2