Home / mailings [gentoo-announce] [ GLSA 201711-01 ] libxml2: Multiple vulnerabilities
Posted on 10 November 2017
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Gentoo Linux Security Advisory=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2==A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0==C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0GLSA 201711-01
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=C2=A0Severity: Normal
=C2=A0=C2=A0=C2=A0=C2=A0Title: libxml2: Multiple vulnerabilities
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0Date: November 10, 2017
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0Bugs: #599192, #605208, #618604, #622914, #62=3206
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0ID: 201711-01
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Synopsis
========
Multiple vulnerabilities have been found in libxml2, the worst of which
could result in the execution of arbitrary code.
Background
==========
libxml2 is the XML (eXtended Markup Language) C parser and toolkit
initially developed for the Gnome project.
Affected packages
=================
=C2=A0=C2=A0=C2=A0=C2=A0---------------------------------------------------=----------------
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0Package=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0==C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0/=C2=A0=C2=A0=C2=A0=C2=A0==C2=A0Vulnerable=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0/=C2=A0=C2=A0=C2=A0=C2=A0=C2==A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0Unaffected
=C2=A0=C2=A0=C2=A0=C2=A0---------------------------------------------------=----------------
=C2=A0 1=C2=A0=C2=A0dev-libs/libxml2=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2==A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0< 2.9.4-r3=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0==C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0>= 2.9.4-r3==C2=A0
Description
===========
Multiple vulnerabilities have been discovered in libxml2. Please review
the CVE identifiers referenced below for details.
Impact
======
A remote attacker, by enticing a user to process a specially crafted
XML document, could remotely execute arbitrary code, conduct XML
External Entity (XXE) attacks, or cause a Denial of Service condition.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All libxml2 users should upgrade to the latest version:
=C2=A0 # emerge --sync
=C2=A0 # emerge --ask --oneshot --verbose ">=dev-libs/libxml2-2.9.4-r3"
Packages which depend on this library may need to be recompiled. Tools
such as revdep-rebuild may assist in identifying some of these
packages.
References
==========
[ 1 ] CVE-2016-9318
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0https://nvd.nist.gov/nvd.cfm?cvename==CVE-2016-9318
[ 2 ] CVE-2017-0663
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0https://nvd.nist.gov/nvd.cfm?cvename==CVE-2017-0663
[ 3 ] CVE-2017-5969
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0https://nvd.nist.gov/nvd.cfm?cvename==CVE-2017-5969
[ 4 ] CVE-2017-7375
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0https://nvd.nist.gov/nvd.cfm?cvename==CVE-2017-7375
[ 5 ] CVE-2017-9047
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0https://nvd.nist.gov/nvd.cfm?cvename==CVE-2017-9047
[ 6 ] CVE-2017-9048
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0https://nvd.nist.gov/nvd.cfm?cvename==CVE-2017-9048
[ 7 ] CVE-2017-9049
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0https://nvd.nist.gov/nvd.cfm?cvename==CVE-2017-9049
[ 8 ] CVE-2017-9050
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0https://nvd.nist.gov/nvd.cfm?cvename==CVE-2017-9050
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
=C2=A0https://security.gentoo.org/glsa/201711-01
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 2017 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.
http://creativecommons.org/licenses/by-sa/2.5
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