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Gentoo Linux Security Advisory                           GLSA 202010-06
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                                           https://security.gentoo.org/
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 Severity: Normal
    Title: Ark: Arbitrary code execution
     Date: October 20, 2020
     Bugs: #743959
       ID: 202010-06

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Synopsis
=======
Ark was found to allow arbitrary file overwrite, possibly allowing
arbitrary code execution.

Background
=========
Ark is a graphical file compression/decompression utility with support
for multiple formats.

Affected packages
================
    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  kde-apps/ark               < 20.04.3-r2            >= 20.04.3-r2

Description
==========
It was discovered that Ark incorrectly handled symbolic links in tar
archive files.

Impact
=====
A remote attacker could entice a user to open a specially crafted
archive using Ark, possibly resulting in execution of arbitrary code
with the privileges of the process or a Denial of Service condition.

Workaround
=========
There is no known workaround at this time.

Resolution
=========
All KDE Ark users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=kde-apps/ark-20.04.3-r2"

References
=========
[ 1 ] CVE-2020-24654
      https://nvd.nist.gov/vuln/detail/CVE-2020-24654

Availability
===========
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

 https://security.gentoo.org/glsa/202010-06

Concerns?
========
Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users' machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
https://bugs.gentoo.org.

License
======
Copyright 2020 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

https://creativecommons.org/licenses/by-sa/2.5