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Last updated: 3/28/2015 2:46:00 PM

CVE Publication rate: 14.13

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Vulnerability Workload Index: 6.63
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National Cyber Awareness System

Vulnerability Summary for CVE-2012-0876

Original release date: 07/03/2012
Last revised: 10/30/2013


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.


CVSS Severity (version 2.0):
CVSS v2 Base Score: 4.3 (MEDIUM) (AV:N/AC:M/Au:N/C:N/I:N/A:P) (legend)
Impact Subscore: 2.9
Exploitability Subscore: 8.6
CVSS Version 2 Metrics:
Access Vector: Network exploitable; Victim must voluntarily interact with attack mechanism
Access Complexity: Medium
Authentication: Not required to exploit
Impact Type: Allows disruption of service

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External Source: UBUNTU
Name: USN-1613-1
External Source: CONFIRM
Name: http://sourceforge.net/tracker/?func=detail&atid=110127&aid=3496608&group_id=10127
External Source: APPLE
Name: APPLE-SA-2013-10-22-3
External Source: UBUNTU
Name: USN-1527-1
External Source: MISC
Name: http://bugs.python.org/issue13703#msg151870
External Source: BID
Name: 52379
External Source: REDHAT
Name: RHSA-2012:0731
External Source: CONFIRM
Name: http://sourceforge.net/projects/expat/files/expat/2.1.0/
External Source: MLIST
Name: [Expat-discuss] 20120304 Announcement: Expat 2.1.0 Beta can be tested
External Source: DEBIAN
Name: DSA-2525
External Source: UBUNTU
Name: USN-1613-2
External Source: MANDRIVA
Name: MDVSA-2012:041

Technical Details

Vulnerability Type (View All)
  • Resource Management Errors (CWE-399)