CVE-2012-0876

CWE-400 — Uncontrolled Resource ConsumptionCWE-407CWE-33115 documents9 sources
Severity
4.3MEDIUM
EPSS
0.3%
top 46.14%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
11
Libexpat Project LibexpatPython PythonCanonical Ubuntu Linux+8 more
Timeline
PublishedJul 3
Latest updateMay 13

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.

CVSS vector

AV:N/AC:M/C:N/I:N/A:PExploitability: 8.6 | Impact: 2.9

Affected Packages9 packages

▶Debianexpat< 2.1.0~beta3-1+3
▶NVDpython/python2.6.0 — 2.6.8+3
▶Debianxmlrpc-c< 1.16.33-3.2+3
▶NVDoracle/solaris11.3

Also affects: Debian Linux 6.0, 7.0, Ubuntu Linux 10.04, 11.04, 11.10, 12.04, 8.04, Enterprise Linux 6.2

🔴Vulnerability Details

3
GHSA
GHSA-q8w9-7fww-v592: The XML parser (xmlparse↗2022-05-13
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CVEList
CVE-2012-0876: The XML parser (xmlparse↗2012-07-03
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OSV
CVE-2012-0876: The XML parser (xmlparse↗2012-07-03
▶

📋Vendor Advisories

8
Red Hat
expat: Little entropy used for hash initialization↗2016-06-04
▶
Ubuntu
Python 2.5 vulnerabilities↗2012-10-17
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Ubuntu
Python 2.4 vulnerabilities↗2012-10-17
▶
Ubuntu
XML-RPC for C and C++ vulnerabilities↗2012-09-10
▶
Ubuntu
Expat vulnerabilities↗2012-08-10
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💬Community

3
Bugzilla
CVE-2016-5300 expat: Little entropy used for hash initialization↗2016-06-06
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Bugzilla
CVE-2012-1148 CVE-2012-0876 compat-expat1 various flaws [fedora-all]↗2013-07-09
▶
Bugzilla
CVE-2012-0876 expat: hash table collisions CPU usage DoS↗2012-02-01
▶