Original 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.
Affected software
- Python ≥ 3.2.0 < 3.2.3≥ 2.6.0 < 2.6.8≥ 2.7.0 < 2.7.3≥ 3.1.0 < 3.1.5 Fixed in: 3.2.3, 2.6.8, 2.7.3, 3.1.5 exact match
Details
- Published
- 2012-07-04
- Last modified
- 2024-08-07
- CVSS vector
AV:N/AC:M/Au:N/C:N/I:N/A:P
References
- cve.org/CVE-2012-0876
- nvd.nist.gov/vuln/detail/CVE-2012-0876
- secunia.com/advisories/49504
- sourceforge.net/tracker/?func=detail&atid=110127&aid=3496608&group_id=10127
- www.tenable.com/security/tns-2016-20
- www.ubuntu.com/usn/USN-1527-1
- bugs.python.org/issue13703#msg151870
- support.apple.com/HT205637
- secunia.com/advisories/51040
- rhn.redhat.com/errata/RHSA-2012-0731.html
- www.securityfocus.com/bid/52379
- sourceforge.net/projects/expat/files/expat/2.1.0/
- rhn.redhat.com/errata/RHSA-2016-0062.html
- lists.apple.com/archives/security-announce/2013/Oct/msg00004.html
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