1. Ubuntu Security Notices
  2. USN-4461-1

USN-4461-1: Ark vulnerability

Publication date

18 August 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

Dominik Penner discovered that Ark did not properly sanitize zip archive
files before performing extraction. An attacker could use this to construct
a malicious zip archive that, when opened, would create files outside the
extraction directory.

Dominik Penner discovered that Ark did not properly sanitize zip archive
files before performing extraction. An attacker could use this to construct
a malicious zip archive that, when opened, would create files outside the
extraction directory.

Update instructions

After a standard system update you need to restart Ark to 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 –  4:19.12.3-0ubuntu1.1
18.04 bionic ark –  4:17.12.3-0ubuntu1.1

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References

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