National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2012-0876 Detail

Description

The XML parser (xmlparse.c) in expat before 2.1.0 computes hash values without restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via an XML file with many identifiers with the same value.

Source:  MITRE
Description Last Modified:  07/03/2012

Impact

CVSS v2.0 Severity and Metrics:

Base Score: 4.3 MEDIUM
Vector: (AV:N/AC:M/Au:N/C:N/I:N/A:P) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 8.6


Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (AU): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Partial
Additional Information:
Victim must voluntarily interact with attack mechanism
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://bugs.python.org/issue13703#msg151870
http://lists.apple.com/archives/security-announce/2013/Oct/msg00004.html
http://lists.apple.com/archives/security-announce/2015/Dec/msg00005.html
http://mail.libexpat.org/pipermail/expat-discuss/2012-March/002768.html
http://rhn.redhat.com/errata/RHSA-2012-0731.html
http://rhn.redhat.com/errata/RHSA-2016-0062.html
http://rhn.redhat.com/errata/RHSA-2016-2957.html
http://sourceforge.net/projects/expat/files/expat/2.1.0/
http://sourceforge.net/tracker/?func=detail&atid=110127&aid=3496608&group_id=10127
http://www.debian.org/security/2012/dsa-2525
http://www.mandriva.com/security/advisories?name=MDVSA-2012:041
http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html
http://www.securityfocus.com/bid/52379
http://www.ubuntu.com/usn/USN-1527-1
http://www.ubuntu.com/usn/USN-1613-1
http://www.ubuntu.com/usn/USN-1613-2
https://support.apple.com/HT205637
https://www.tenable.com/security/tns-2016-20

Technical Details

Vulnerability Type (View All)

  • Resource Management Errors (CWE-399)

Change History

6 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2012-0876
NVD Published Date:
07/03/2012
NVD Last Modified:
01/04/2018