drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Denial of Service in Xerces-C++
Name: |
Denial of Service in Xerces-C++ |
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ID: |
200903-19 |
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Distribution: |
Gentoo |
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Plattformen: |
Keine Angabe |
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Datum: |
Mo, 9. März 2009, 17:17 |
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Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4482 |
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Applikationen: |
Xerces-C++ |
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Originalnachricht |
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- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200903-19 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Severity: Normal Title: Xerces-C++: Denial of Service Date: March 09, 2009 Bugs: #240496 ID: 200903-19
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Synopsis ========
An error in Xerces-C++ allows for a Denial of Service via malicious XML schema files.
Background ==========
Xerces-C++ is a validating XML parser written in a portable subset of C++.
Affected packages =================
------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 dev-libs/xerces-c < 3.0.0-r1 >= 3.0.0-r1
Description ===========
Frank Rast reported that the XML parser in Xerces-C++ does not correctly handle an XML schema definition with a large maxOccurs value, which triggers excessive memory consumption during the validation of an XML file.
Impact ======
A remote attacker could entice a user or automated system to validate an XML file using a specially crafted XML schema file, leading to a Denial of Service (stack consumption and crash).
Workaround ==========
There is no known workaround at this time.
Resolution ==========
All Xerces-C++ users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=dev-libs/xerces-c-3.0.0-r1"
References ==========
[ 1 ] CVE-2008-4482 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4482
Availability ============
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200903-19.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 2009 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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