Debian-LTS alert DLA-691-1 (libxml2)

From:
    	     
 
Thorsten Alteholz <debian@alteholz.de> 
To:
    	     
 
debian-lts-announce@lists.debian.org 
Subject:
    	     
 
[SECURITY] [DLA 691-1] libxml2 security update 
Date:
    	     
 
Mon, 31 Oct 2016 18:09:55 +0100 (CET)
Message-ID:
    	     
 
<alpine.DEB.2.02.1610311809010.8728@jupiter.server.alteholz.net>
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Package        : libxml2
Version        : 2.8.0+dfsg1-7+wheezy7
CVE ID         : CVE-2016-4658 CVE-2016-5131

CVE-2016-4658
      Namespace nodes must be copied to avoid use-after-free errors.
      But they don't necessarily have a physical representation in a
      document, so simply disallow them in XPointer ranges.

CVE-2016-5131
      The old code would invoke the broken xmlXPtrRangeToFunction.
      range-to isn't really a function but a special kind of
      location step. Remove this function and always handle range-to
      in the XPath code.
      The old xmlXPtrRangeToFunction could also be abused to trigger
      a use-after-free error with the potential for remote code
      execution.

For Debian 7 "Wheezy", these problems have been fixed in version
2.8.0+dfsg1-7+wheezy7.

We recommend that you upgrade your libxml2 packages.

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS

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