==========================================================================
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
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