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Gentoo Linux Security Advisory                           GLSA 202107-47
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                                           https://security.gentoo.org/
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 Severity: Normal
    Title: libpano13: Format string vulnerability
     Date: July 20, 2021
     Bugs: #780486
       ID: 202107-47

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Synopsis
========

A format string vulnerability has been found in libpano13, potentially
resulting in arbitrary code execution.

Background
==========

libpano13 is Helmut Dersch's panorama toolbox library.

Affected packages
=================

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  media-libs/libpano13         < 2.9.20                  >= 2.9.20 

Description
===========

A format string issue exists within panoFileOutputNamesCreate() where
unvalidated input is passed directly into the formatter.

Impact
======

A remote attacker could entice a user to open a specially crafted file
using libpano13, 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 libpano13 users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=media-libs/libpano13-2.9.20"

References
==========

[ 1 ] CVE-2021-20307
      https://nvd.nist.gov/vuln/detail/CVE-2021-20307

Availability
============

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

 https://security.gentoo.org/glsa/202107-47

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 2021 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

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