A libarchive security update has been released for Gentoo Linux.

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Gentoo Linux Security Advisory GLSA 202003-28
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  https://security.gentoo.org/
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Severity: Normal
Title: libarchive: Multiple vulnerabilities
Date: March 15, 2020
Bugs: #699222, #710358
ID: 202003-28

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Synopsis
========

Multiple vulnerabilities have been found in libarchive, the worst of
which may lead to arbitrary code execution.

Background
==========

libarchive is a library for manipulating different streaming archive
formats, including certain tar variants, several cpio formats, and both
BSD and GNU ar variants.

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

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Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 app-arch/libarchive < 3.4.2 >= 3.4.2

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

Multiple vulnerabilities have been discovered in libarchive. Please
review the CVE identifiers referenced below for details.

Impact
======

A remote attacker could entice a user to open a specially crafted
archive file possibly resulting in the 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 libarchive users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=app-arch/libarchive-3.4.2"

References
==========

[ 1 ] CVE-2019-18408
  https://nvd.nist.gov/vuln/detail/CVE-2019-18408
[ 2 ] CVE-2020-9308
  https://nvd.nist.gov/vuln/detail/CVE-2020-9308

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

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

  https://security.gentoo.org/glsa/202003-28

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