drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Mehrere Probleme in libxml2
Name: |
Mehrere Probleme in libxml2 |
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ID: |
200812-06 |
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Distribution: |
Gentoo |
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Plattformen: |
Keine Angabe |
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Datum: |
Di, 2. Dezember 2008, 19:09 |
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Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-3281
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-3529
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4225
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4226
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4409 |
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Applikationen: |
libxml2 |
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Originalnachricht |
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- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200812-06 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Severity: Normal Title: libxml2: Multiple vulnerabilities Date: December 02, 2008 Bugs: #234099, #237806, #239346, #245960 ID: 200812-06
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Synopsis ========
Multiple vulnerabilities in libxml2 might lead to execution of arbitrary code or Denial of Service.
Background ==========
libxml2 is the XML (eXtended Markup Language) C parser and toolkit initially developed for the Gnome project.
Affected packages =================
------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 dev-libs/libxml2 < 2.7.2-r1 >= 2.7.2-r1
Description ===========
Multiple vulnerabilities were reported in libxml2:
* Andreas Solberg reported that libxml2 does not properly detect recursion during entity expansion in an attribute value (CVE-2008-3281).
* A heap-based buffer overflow has been reported in the xmlParseAttValueComplex() function in parser.c (CVE-2008-3529).
* Christian Weiske reported that predefined entity definitions in entities are not properly handled (CVE-2008-4409).
* Drew Yao of Apple Product Security reported an integer overflow in the xmlBufferResize() function that can lead to an infinite loop (CVE-2008-4225).
* Drew Yao of Apple Product Security reported an integer overflow in the xmlSAX2Characters() function leading to a memory corruption (CVE-2008-4226).
Impact ======
A remote attacker could entice a user or automated system to open a specially crafted XML document with an application using libxml2, possibly resulting in the exeution of arbitrary code or a high CPU and memory consumption.
Workaround ==========
There is no known workaround at this time.
Resolution ==========
All libxml2 users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=dev-libs/libxml2-2.7.2-r1"
References ==========
[ 1 ] CVE-2008-3281 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-3281 [ 2 ] CVE-2008-3529 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-3529 [ 3 ] CVE-2008-4409 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4409 [ 4 ] CVE-2008-4225 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4225 [ 5 ] CVE-2008-4226 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4226
Availability ============
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200812-06.xml
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 http://bugs.gentoo.org.
License =======
Copyright 2008 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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