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TI-2012-03853 Aliases CVE-2012-4512GHSA-8m6q-hj66-2cmr

Type confusion in KDE Konqueror

Priority MEDIUM 52CWE-843Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-843 and the CVSS impact.

Summary

The CSS parser (khtml/css/cssparser.cpp) in Konqueror in KDE 4.7.3 allows remote attackers to cause a denial of service (crash) and possibly read memory via a crafted font face source, related to "type confusion."

Why it matters now

EPSS 0.11656 96th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed Red Hat: 2 advisories

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
KDEKonqueror4.7.3—No fix listedCNA
  • Konqueror VendorKDE Affected 4.7.3 Fixed in — No fix listed CNA

CPE configurations NVD · 5

CPEVersionsRoleVendor
cpe:2.3:a:kde:kde:4.7.3:*:*:*:*:*:*:*4.7.3VulnerableKDE
cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*6.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*6.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_eus:6.3:*:*:*:*:*:*:*6.3VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*6.0VulnerableRed Hat
  • cpe:2.3:a:kde:kde:4.7.3:*:*:*:*:*:*:* Versions 4.7.3 Vulnerable ·KDE
  • cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* Versions 6.0 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_server_eus:6.3:*:*:*:*:*:*:* Versions 6.3 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat

Remediation

Red Hat 2 advisories

  • RHSA-2012:1418 Released 2012-10-30 · Red Hat rating Critical
    kdelibs security update
    • Red Hat Enterprise Linux Desktop (v. 6)
    • Red Hat Enterprise Linux HPC Node (v. 6)
    • Red Hat Enterprise Linux Server (v. 6)
    • Red Hat Enterprise Linux Workstation (v. 6)
  • RHSA-2012:1416 Released 2012-10-30 · Red Hat rating Critical
    kdelibs security update
    • Red Hat Enterprise Linux Desktop (v. 6) kdelibs-6:4.3.4-14.el6_3.2, kdelibs-common-6:4.3.4-14.el6_3.2
    • Red Hat Enterprise Linux Desktop Optional (v. 6) kdelibs-6:4.3.4-14.el6_3.2, kdelibs-apidocs-6:4.3.4-14.el6_3.2, kdelibs-devel-6:4.3.4-14.el6_3.2
    • Red Hat Enterprise Linux HPC Node Optional (v. 6) kdelibs-6:4.3.4-14.el6_3.2, kdelibs-apidocs-6:4.3.4-14.el6_3.2, kdelibs-common-6:4.3.4-14.el6_3.2 +1
    • Red Hat Enterprise Linux Server (v. 6) kdelibs-6:4.3.4-14.el6_3.2, kdelibs-6:4.3.4-14.el6_3.2.ppc, kdelibs-apidocs-6:4.3.4-14.el6_3.2 +3
    • Red Hat Enterprise Linux Workstation (v. 6) kdelibs-6:4.3.4-14.el6_3.2, kdelibs-apidocs-6:4.3.4-14.el6_3.2, kdelibs-common-6:4.3.4-14.el6_3.2 +1

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux Desktop (v. 6)Fixed RHSA-2012:1416, RHSA-2012:1418
Red Hat Enterprise Linux Desktop Optional (v. 6)Fixed RHSA-2012:1416
Red Hat Enterprise Linux HPC Node (v. 6)Fixed RHSA-2012:1418
Red Hat Enterprise Linux HPC Node Optional (v. 6)Fixed RHSA-2012:1416
Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2012:1416, RHSA-2012:1418
Red Hat Enterprise Linux Workstation (v. 6)Fixed RHSA-2012:1416, RHSA-2012:1418
Not affected: 1 product
  • Red Hat Enterprise Linux 5

Timeline

  1. 2026-10-02 Threatist record created from CVE-2012-4512
  2. 2026-10-03 Alias added: GHSA-8m6q-hj66-2cmr

References

Exploit 1

Advisory 7

  • TI-2004-00806 Multiple integer overflows in xpdf 2.0 and 3.0, and other packages that use xpdf code… CVSS 2.0HIGH 10.0
  • TI-2004-00807 Multiple integer overflows in xpdf 3.0, and other packages that use xpdf code such as… CVSS 2.0HIGH 10.0
  • TI-2005-00011 Multiple vulnerabilities in fliccd, when installed setuid root as part of the kdeedu… CVSS 2.0HIGH 10.0
  • TI-2004-01022 Buffer overflow in the Gfx::doImage function in Gfx.cc for xpdf 3.00, and other products… CVSS 2.0HIGH 9.3
  • TI-2008-01602 Heap-based buffer overflow in the progressive PNG Image loader (decoders/pngloader.cpp)… CVSS 2.0HIGH 9.3
  • TI-2003-00639 KDM in KDE 3.1.3 and earlier does not verify whether the pam_setcred function call… CVSS 2.0HIGH 10.0
See all 65 →

Sources

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