USN-4461-1: Ark vulnerability

18 August 2020

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

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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.

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Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

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Update instructions

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

Ubuntu 20.04
Ubuntu 18.04

After a standard system update you need to restart Ark to make all
the necessary changes.

References

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Further reading