1. Ubuntu Security Notices
  2. USN-4482-1

USN-4482-1: Ark vulnerability

Publication date

1 September 2020

Overview

Ark could be made to write files as your login if it opened a specially crafted file.

Releases

Packages

  • 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.

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

In general, a standard system update will make all the necessary changes.

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
20.04 focal ark –  4:19.12.3-0ubuntu1.2
18.04 bionic ark –  4:17.12.3-0ubuntu1.2
16.04 xenial ark –  4:15.12.3-0ubuntu1.2

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References

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