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TI-2012-00811 Aliases CVE-2012-0876GHSA-q8w9-7fww-v592

The XML parser (xmlparse.c) in expat before 2.1.0 computes hash values without…

Priority LOW 29CWE-400Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Medium
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · Partial
Fix status
Partial Red Hat: 12 fixed, 6 without a fix

Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-400.

Summary

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.

Why it matters now

EPSS 0.0566 93rd percentileScored 2026-11-07
Fix Partial Red Hat: 4 advisoriesRed Hat: 12 fixed, 6 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 19

CPEVersionsRoleVendor
cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:*before 2.1.0Vulnerablelibexpat project
cpe:2.3:a:python:python:*:*:*:*:*:*:*:*2.6.0 to before 2.6.8; 2.7.0 to before 2.7.3; 3.1.0 to before 3.1.5; 3.2.0 to before 3.2.3Vulnerablepython-pillow
cpe:2.3:o:debian:debian_linux:6.0:*:*:*:*:*:*:*6.0VulnerableDebian
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*7.0VulnerableDebian
cpe:2.3:o:canonical:ubuntu_linux:8.04:*:*:*:-:*:*:*8.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:-:*:*:*10.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:11.04:*:*:*:*:*:*:*11.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:11.10:*:*:*:*:*:*:*11.10VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:*12.04VulnerableCanonical
cpe:2.3:o:oracle:solaris:11.3:*:*:*:*:*:*:*11.3VulnerableOracle
  • cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:* Versions before 2.1.0 Vulnerable ·libexpat project
  • cpe:2.3:a:python:python:*:*:*:*:*:*:*:* Versions 2.6.0 to before 2.6.8; 2.7.0 to before 2.7.3; 3.1.0 to before 3.1.5; 3.2.0 to before 3.2.3 Vulnerable ·python-pillow
  • cpe:2.3:o:debian:debian_linux:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Debian
  • cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Debian
  • cpe:2.3:o:canonical:ubuntu_linux:8.04:*:*:*:-:*:*:* Versions 8.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:-:*:*:* Versions 10.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:11.04:*:*:*:*:*:*:* Versions 11.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:11.10:*:*:*:*:*:*:* Versions 11.10 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:* Versions 12.04 Vulnerable ·Canonical
  • cpe:2.3:o:oracle:solaris:11.3:*:*:*:*:*:*:* Versions 11.3 Vulnerable ·Oracle
Show 9 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:redhat:storage:2.0:*:*:*:*:*:*:*2.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_desktop:5.0:*:*:*:*:*:*:*5.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*6.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_eus:6.2:*:*:*:*:*:*:*6.2VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server:5.0:*:*:*:*:*:*:*5.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*6.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_aus:6.2:*:*:*:*:*:*:*6.2VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_workstation:5.0:*:*:*:*:*:*:*5.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*6.0VulnerableRed Hat
  • cpe:2.3:a:redhat:storage:2.0:*:*:*:*:*:*:* Versions 2.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_desktop:5.0:*:*:*:*:*:*:* Versions 5.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_eus:6.2:*:*:*:*:*:*:* Versions 6.2 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server:5.0:*:*:*:*:*:*:* Versions 5.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_aus:6.2:*:*:*:*:*:*:* Versions 6.2 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_workstation:5.0:*:*:*:*:*:*:* Versions 5.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat

Remediation

Red Hat 4 advisories

  • RHSA-2017:3239 Released 2017-11-16 · Red Hat rating Important
    Red Hat JBoss Enterprise Application Platform 6.4.18 security update
    • Red Hat JBoss Enterprise Application Platform 6.4
  • RHSA-2016:2957 Released 2016-12-15 · Red Hat rating Important
    Red Hat JBoss Core Services Apache HTTP 2.4.23 Release
    • Red Hat JBoss Core Services
  • RHSA-2016:0062 Released 2016-01-21 · Red Hat rating Moderate
    Red Hat JBoss Web Server 2.1.0 security update
    • Red Hat JBoss Web Server 2.1
Show 1 more Red Hat advisories
  • RHSA-2012:0731 Released 2012-06-13 · Red Hat rating Moderate
    expat security update
    • RHEL Desktop Workstation (v. 5 client) expat-1.95.8-11.el5_8, expat-devel-1.95.8-11.el5_8, expat-devel-1.95.8-11.el5_8.i386
    • Red Hat Enterprise Linux (v. 5 server) expat-1.95.8-11.el5_8, expat-1.95.8-11.el5_8.i386, expat-1.95.8-11.el5_8.ia64 +5
    • Red Hat Enterprise Linux Desktop (v. 5 client) expat-1.95.8-11.el5_8, expat-1.95.8-11.el5_8.i386
    • Red Hat Enterprise Linux Desktop (v. 6) expat-2.0.1-11.el6_2
    • Red Hat Enterprise Linux Desktop Optional (v. 6) expat-2.0.1-11.el6_2, expat-devel-2.0.1-11.el6_2
    • Red Hat Enterprise Linux HPC Node (v. 6) expat-2.0.1-11.el6_2
    • Red Hat Enterprise Linux HPC Node Optional (v. 6) expat-2.0.1-11.el6_2, expat-devel-2.0.1-11.el6_2
    • Red Hat Enterprise Linux Server (v. 6) expat-2.0.1-11.el6_2, expat-2.0.1-11.el6_2.ppc, expat-devel-2.0.1-11.el6_2 +1
    • Red Hat Enterprise Linux Workstation (v. 6) expat-2.0.1-11.el6_2, expat-devel-2.0.1-11.el6_2

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Directory Server 8AffectedNo fix yet
Red Hat Enterprise Linux 4AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux 5AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux 6AffectedNo fix yet
Red Hat JBoss Enterprise Application Platform 6AffectedNo fix yet
Red Hat JBoss Enterprise Web Server 3AffectedNo fix yet
RHEL Desktop Workstation (v. 5 client)Fixed RHSA-2012:0731
Red Hat Enterprise Linux (v. 5 server)Fixed RHSA-2012:0731
Red Hat Enterprise Linux Desktop (v. 5 client)Fixed RHSA-2012:0731
Red Hat Enterprise Linux Desktop (v. 6)Fixed RHSA-2012:0731
Red Hat Enterprise Linux Desktop Optional (v. 6)Fixed RHSA-2012:0731
Red Hat Enterprise Linux HPC Node (v. 6)Fixed RHSA-2012:0731
Red Hat Enterprise Linux HPC Node Optional (v. 6)Fixed RHSA-2012:0731
Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2012:0731
Red Hat Enterprise Linux Workstation (v. 6)Fixed RHSA-2012:0731
Red Hat JBoss Core ServicesFixed RHSA-2016:2957
Red Hat JBoss Enterprise Application Platform 6.4Fixed RHSA-2017:3239
Red Hat JBoss Web Server 2.1Fixed RHSA-2016:0062

Timeline

  1. 2026-10-02 Threatist record created from CVE-2012-0876
  2. 2026-10-03 Alias added: GHSA-q8w9-7fww-v592

References

Advisory 16

Other 2

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences