CVE-2012-0876
Expat Hash Collision DOS
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.
INFO
Published Date :
July 3, 2012, 7:55 p.m.
Last Modified :
Aug. 5, 2022, 2:52 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
2.9
Exploitability Score :
8.6
Affected Products
The following products are affected by CVE-2012-0876
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2012-0876.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2012-0876 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2012-0876 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Modified Analysis by [email protected]
Aug. 05, 2022
Action Type Old Value New Value Changed Reference Type http://bugs.python.org/issue13703#msg151870 No Types Assigned http://bugs.python.org/issue13703#msg151870 Issue Tracking, Third Party Advisory Changed Reference Type http://lists.apple.com/archives/security-announce/2013/Oct/msg00004.html No Types Assigned http://lists.apple.com/archives/security-announce/2013/Oct/msg00004.html Broken Link, Mailing List Changed Reference Type http://lists.apple.com/archives/security-announce/2015/Dec/msg00005.html No Types Assigned http://lists.apple.com/archives/security-announce/2015/Dec/msg00005.html Broken Link, Mailing List Changed Reference Type http://mail.libexpat.org/pipermail/expat-discuss/2012-March/002768.html No Types Assigned http://mail.libexpat.org/pipermail/expat-discuss/2012-March/002768.html Broken Link Changed Reference Type http://rhn.redhat.com/errata/RHSA-2012-0731.html No Types Assigned http://rhn.redhat.com/errata/RHSA-2012-0731.html Third Party Advisory Changed Reference Type http://rhn.redhat.com/errata/RHSA-2016-0062.html No Types Assigned http://rhn.redhat.com/errata/RHSA-2016-0062.html Third Party Advisory Changed Reference Type http://rhn.redhat.com/errata/RHSA-2016-2957.html No Types Assigned http://rhn.redhat.com/errata/RHSA-2016-2957.html Third Party Advisory Changed Reference Type http://secunia.com/advisories/49504 Vendor Advisory http://secunia.com/advisories/49504 Not Applicable Changed Reference Type http://secunia.com/advisories/51024 No Types Assigned http://secunia.com/advisories/51024 Not Applicable Changed Reference Type http://secunia.com/advisories/51040 No Types Assigned http://secunia.com/advisories/51040 Not Applicable Changed Reference Type http://sourceforge.net/projects/expat/files/expat/2.1.0/ No Types Assigned http://sourceforge.net/projects/expat/files/expat/2.1.0/ Release Notes, Third Party Advisory Changed Reference Type http://sourceforge.net/tracker/?func=detail&atid=110127&aid=3496608&group_id=10127 No Types Assigned http://sourceforge.net/tracker/?func=detail&atid=110127&aid=3496608&group_id=10127 Third Party Advisory Changed Reference Type http://www.debian.org/security/2012/dsa-2525 No Types Assigned http://www.debian.org/security/2012/dsa-2525 Third Party Advisory Changed Reference Type http://www.mandriva.com/security/advisories?name=MDVSA-2012:041 No Types Assigned http://www.mandriva.com/security/advisories?name=MDVSA-2012:041 Broken Link Changed Reference Type http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html No Types Assigned http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html Third Party Advisory Changed Reference Type http://www.securityfocus.com/bid/52379 No Types Assigned http://www.securityfocus.com/bid/52379 Third Party Advisory, VDB Entry Changed Reference Type http://www.ubuntu.com/usn/USN-1527-1 No Types Assigned http://www.ubuntu.com/usn/USN-1527-1 Third Party Advisory Changed Reference Type http://www.ubuntu.com/usn/USN-1613-1 No Types Assigned http://www.ubuntu.com/usn/USN-1613-1 Third Party Advisory Changed Reference Type http://www.ubuntu.com/usn/USN-1613-2 No Types Assigned http://www.ubuntu.com/usn/USN-1613-2 Third Party Advisory Changed Reference Type https://kc.mcafee.com/corporate/index?page=content&id=SB10365 No Types Assigned https://kc.mcafee.com/corporate/index?page=content&id=SB10365 Broken Link Changed Reference Type https://support.apple.com/HT205637 No Types Assigned https://support.apple.com/HT205637 Third Party Advisory Changed Reference Type https://www.tenable.com/security/tns-2016-20 No Types Assigned https://www.tenable.com/security/tns-2016-20 Third Party Advisory Removed CWE NIST CWE-399 Added CWE NIST CWE-400 Changed CPE Configuration OR *cpe:2.3:a:libexpat_project:libexpat:1.95.1:*:*:*:*:*:*:* *cpe:2.3:a:libexpat_project:libexpat:1.95.2:*:*:*:*:*:*:* *cpe:2.3:a:libexpat_project:libexpat:1.95.4:*:*:*:*:*:*:* *cpe:2.3:a:libexpat_project:libexpat:1.95.5:*:*:*:*:*:*:* *cpe:2.3:a:libexpat_project:libexpat:1.95.6:*:*:*:*:*:*:* *cpe:2.3:a:libexpat_project:libexpat:1.95.7:*:*:*:*:*:*:* *cpe:2.3:a:libexpat_project:libexpat:1.95.8:*:*:*:*:*:*:* *cpe:2.3:a:libexpat_project:libexpat:2.0.0:*:*:*:*:*:*:* *cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:* versions up to (including) 2.0.1 OR *cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:* versions up to (excluding) 2.1.0 Added CPE Configuration OR *cpe:2.3:a:python:python:*:*:*:*:*:*:*:* versions from (including) 2.6.0 up to (excluding) 2.6.8 *cpe:2.3:a:python:python:*:*:*:*:*:*:*:* versions from (including) 2.7.0 up to (excluding) 2.7.3 *cpe:2.3:a:python:python:*:*:*:*:*:*:*:* versions from (including) 3.1.0 up to (excluding) 3.1.5 *cpe:2.3:a:python:python:*:*:*:*:*:*:*:* versions from (including) 3.2.0 up to (excluding) 3.2.3 Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:6.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:canonical:ubuntu_linux:8.04:*:*:*:-:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:-:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:11.04:*:*:*:*:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:11.10:*:*:*:*:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:* Added CPE Configuration OR *cpe:2.3:o:oracle:solaris:11.3:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:a:redhat:storage:2.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_desktop:5.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_eus:6.2:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server:5.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server_aus:6.2:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_workstation:5.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Jul. 31, 2021
Action Type Old Value New Value Added Reference https://kc.mcafee.com/corporate/index?page=content&id=SB10365 [No Types Assigned] -
CPE Deprecation Remap by [email protected]
Jan. 25, 2021
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:libexpat:expat:*:*:*:*:*:*:*:* versions from (including) 2.0.1 OR *cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:* versions from (including) 2.0.1 -
CPE Deprecation Remap by [email protected]
Jan. 25, 2021
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:libexpat:expat:2.0.0:*:*:*:*:*:*:* OR *cpe:2.3:a:libexpat_project:libexpat:2.0.0:*:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
Jan. 25, 2021
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:libexpat:expat:1.95.8:*:*:*:*:*:*:* OR *cpe:2.3:a:libexpat_project:libexpat:1.95.8:*:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
Jan. 25, 2021
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:libexpat:expat:1.95.7:*:*:*:*:*:*:* OR *cpe:2.3:a:libexpat_project:libexpat:1.95.7:*:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
Jan. 25, 2021
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:libexpat:expat:1.95.6:*:*:*:*:*:*:* OR *cpe:2.3:a:libexpat_project:libexpat:1.95.6:*:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
Jan. 25, 2021
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:libexpat:expat:1.95.5:*:*:*:*:*:*:* OR *cpe:2.3:a:libexpat_project:libexpat:1.95.5:*:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
Jan. 25, 2021
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:libexpat:expat:1.95.4:*:*:*:*:*:*:* OR *cpe:2.3:a:libexpat_project:libexpat:1.95.4:*:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
Jan. 25, 2021
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:libexpat:expat:1.95.2:*:*:*:*:*:*:* OR *cpe:2.3:a:libexpat_project:libexpat:1.95.2:*:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
Jan. 25, 2021
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:libexpat:expat:1.95.1:*:*:*:*:*:*:* OR *cpe:2.3:a:libexpat_project:libexpat:1.95.1:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Jan. 05, 2018
Action Type Old Value New Value Added Reference http://rhn.redhat.com/errata/RHSA-2016-2957.html [No Types Assigned] -
CVE Modified by [email protected]
Nov. 03, 2017
Action Type Old Value New Value Added Reference https://www.tenable.com/security/tns-2016-20 [No Types Assigned] -
CVE Modified by [email protected]
Dec. 06, 2016
Action Type Old Value New Value Added Reference http://rhn.redhat.com/errata/RHSA-2016-0062.html [No Types Assigned] -
CVE Modified by [email protected]
Sep. 23, 2016
Action Type Old Value New Value Added Reference http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html -
CVE Modified by [email protected]
Dec. 12, 2015
Action Type Old Value New Value Added Reference http://lists.apple.com/archives/security-announce/2015/Dec/msg00005.html Added Reference https://support.apple.com/HT205637 -
Initial Analysis by [email protected]
Jul. 03, 2012
Action Type Old Value New Value
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2012-0876 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2012-0876
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.42 }} 0.02%
score
0.70734
percentile