ASA-201611-2 log generated external raw
[ASA-201611-2] libxml2: arbitrary code execution |
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Arch Linux Security Advisory ASA-201611-2
=========================================
Severity: Critical
Date : 2016-11-01
CVE-ID : CVE-2016-4658 CVE-2016-5131
Package : libxml2
Type : arbitrary code execution
Remote : Yes
Link : https://wiki.archlinux.org/index.php/CVE
Summary
=======
The package libxml2 before version 2.9.4+12+ge905f08-1 is vulnerable to
arbitrary code execution.
Resolution
==========
Upgrade to 2.9.4+12+ge905f08-1.
# pacman -Syu "libxml2>=2.9.4+12+ge905f08-1"
The problems have been fixed upstream but no release is available yet.
Workaround
==========
None.
Description
===========
- CVE-2016-4658 (arbitrary code execution)
A use-after-free vulnerability via namespace nodes in XPointer ranges
was found in libxml2.
- CVE-2016-5131 (arbitrary code execution)
Bugs in xmlXPathEvalExpr and xmlXPtrRangeToFunction can lead to a use-
after-free and allow control of the instruction pointer.
Impact
======
A remote attacker is able to use a specially crafted XPath payload to
execute arbitrary code.
References
==========
https://bugzilla.redhat.com/show_bug.cgi?id=1384424
https://git.gnome.org/browse/libxml2/commit/?id=c1d1f7121194036608bf555f08d3062a36fd344b
https://git.gnome.org/browse/libxml2/commit/?id=9ab01a277d71f54d3143c2cf333c5c2e9aaedd9e
https://bugs.chromium.org/p/chromium/issues/detail?id=623378
https://access.redhat.com/security/cve/CVE-2016-4658
https://access.redhat.com/security/cve/CVE-2016-5131
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