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TI-2012-01054 Aliases CVE-2012-1148GHSA-hm5h-j86h-82pc

Memory leak in the poolGrow function in expat/lib/xmlparse.c in expat before 2.1.0 allows…

Priority LOW 29CWE-399Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · Partial
Fix status
Partial Red Hat: 10 fixed, 8 without a fix

Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-399 and the CVSS impact.

Summary

Memory leak in the poolGrow function in expat/lib/xmlparse.c in expat before 2.1.0 allows context-dependent attackers to cause a denial of service (memory consumption) via a large number of crafted XML files that cause improperly-handled reallocation failures when expanding entities.

Why it matters now

EPSS 0.0343 89th percentileScored 2026-11-07
Fix Partial Red Hat: 2 advisoriesRed Hat: 10 fixed, 8 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 · 10

CPEVersionsRoleVendor
cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:*up to 2.0.1Vulnerablelibexpat project
cpe:2.3:a:libexpat_project:libexpat:1.95.1:*:*:*:*:*:*:*1.95.1Vulnerablelibexpat project
cpe:2.3:a:libexpat_project:libexpat:1.95.2:*:*:*:*:*:*:*1.95.2Vulnerablelibexpat project
cpe:2.3:a:libexpat_project:libexpat:1.95.4:*:*:*:*:*:*:*1.95.4Vulnerablelibexpat project
cpe:2.3:a:libexpat_project:libexpat:1.95.5:*:*:*:*:*:*:*1.95.5Vulnerablelibexpat project
cpe:2.3:a:libexpat_project:libexpat:1.95.6:*:*:*:*:*:*:*1.95.6Vulnerablelibexpat project
cpe:2.3:a:libexpat_project:libexpat:1.95.7:*:*:*:*:*:*:*1.95.7Vulnerablelibexpat project
cpe:2.3:a:libexpat_project:libexpat:1.95.8:*:*:*:*:*:*:*1.95.8Vulnerablelibexpat project
cpe:2.3:a:libexpat_project:libexpat:2.0.0:*:*:*:*:*:*:*2.0.0Vulnerablelibexpat project
cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*up to 10.11.1VulnerableApple
  • cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:* Versions up to 2.0.1 Vulnerable ·libexpat project
  • cpe:2.3:a:libexpat_project:libexpat:1.95.1:*:*:*:*:*:*:* Versions 1.95.1 Vulnerable ·libexpat project
  • cpe:2.3:a:libexpat_project:libexpat:1.95.2:*:*:*:*:*:*:* Versions 1.95.2 Vulnerable ·libexpat project
  • cpe:2.3:a:libexpat_project:libexpat:1.95.4:*:*:*:*:*:*:* Versions 1.95.4 Vulnerable ·libexpat project
  • cpe:2.3:a:libexpat_project:libexpat:1.95.5:*:*:*:*:*:*:* Versions 1.95.5 Vulnerable ·libexpat project
  • cpe:2.3:a:libexpat_project:libexpat:1.95.6:*:*:*:*:*:*:* Versions 1.95.6 Vulnerable ·libexpat project
  • cpe:2.3:a:libexpat_project:libexpat:1.95.7:*:*:*:*:*:*:* Versions 1.95.7 Vulnerable ·libexpat project
  • cpe:2.3:a:libexpat_project:libexpat:1.95.8:*:*:*:*:*:*:* Versions 1.95.8 Vulnerable ·libexpat project
  • cpe:2.3:a:libexpat_project:libexpat:2.0.0:*:*:*:*:*:*:* Versions 2.0.0 Vulnerable ·libexpat project
  • cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:* Versions up to 10.11.1 Vulnerable ·Apple

Remediation

Red Hat 2 advisories

  • 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-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 planned: Will not fix
Red Hat JBoss Core ServicesAffectedNo fix yet
Red Hat JBoss Enterprise Application Platform 6AffectedNo fix yet
Red Hat JBoss Enterprise Web Server 2AffectedNo fix yet
Red Hat JBoss Enterprise Web Server 3AffectedNo fix yet: Fix deferred
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

Timeline

  1. 2026-10-02 Threatist record created from CVE-2012-1148
  2. 2026-10-03 Alias added: GHSA-hm5h-j86h-82pc

References

Patch 1

Advisory 9

Other 3

Sources

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