Read the docs
TI-2010-04302 Aliases CVE-2010-4577GHSA-9j34-5qgm-c4jh

The CSSParser::parseFontFaceSrc function in WebCore/css/CSSParser.cpp in WebKit, as used…

Priority MEDIUM 43CWE-125Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-125 and the CVSS impact.

Summary

The CSSParser::parseFontFaceSrc function in WebCore/css/CSSParser.cpp in WebKit, as used in Google Chrome before 8.0.552.224, Chrome OS before 8.0.552.343, webkitgtk before 1.2.6, and other products does not properly parse Cascading Style Sheets (CSS) token sequences, which allows remote attackers to cause a denial of service (out-of-bounds read) via a crafted local font, related to "Type Confusion."

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.02209 82nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed Red Hat: 1 advisory

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

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

CPE configurations NVD · 6

CPEVersionsRoleVendor
cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*before 8.0.552.224VulnerableGoogle
cpe:2.3:a:webkitgtk:webkitgtk:*:*:*:*:*:*:*:*before 1.2.6VulnerableWebKitGTK
cpe:2.3:o:google:chrome_os:*:*:*:*:*:*:*:*before 8.0.552.343VulnerableGoogle
cpe:2.3:o:fedoraproject:fedora:13:*:*:*:*:*:*:*13VulnerableFedoraproject
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:a:google:chrome:*:*:*:*:*:*:*:* Versions before 8.0.552.224 Vulnerable ·Google
  • cpe:2.3:a:webkitgtk:webkitgtk:*:*:*:*:*:*:*:* Versions before 1.2.6 Vulnerable ·WebKitGTK
  • cpe:2.3:o:google:chrome_os:*:*:*:*:*:*:*:* Versions before 8.0.552.343 Vulnerable ·Google
  • cpe:2.3:o:fedoraproject:fedora:13:*:*:*:*:*:*:* Versions 13 Vulnerable ·Fedoraproject
  • 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

Remediation

Red Hat 1 advisory

  • RHSA-2011:0177 Released 2011-01-25 · Red Hat rating Moderate
    webkitgtk security update
    • Red Hat Enterprise Linux Desktop (v. 6) webkitgtk-1.2.6-2.el6_0
    • Red Hat Enterprise Linux Desktop Optional (v. 6) webkitgtk-1.2.6-2.el6_0, webkitgtk-devel-1.2.6-2.el6_0, webkitgtk-doc-1.2.6-2.el6_0
    • Red Hat Enterprise Linux HPC Node Optional (v. 6) webkitgtk-1.2.6-2.el6_0, webkitgtk-devel-1.2.6-2.el6_0, webkitgtk-doc-1.2.6-2.el6_0
    • Red Hat Enterprise Linux Server (v. 6) webkitgtk-1.2.6-2.el6_0, webkitgtk-1.2.6-2.el6_0.ppc
    • Red Hat Enterprise Linux Server Optional (v. 6) webkitgtk-1.2.6-2.el6_0, webkitgtk-devel-1.2.6-2.el6_0, webkitgtk-devel-1.2.6-2.el6_0.ppc +1
    • Red Hat Enterprise Linux Workstation (v. 6) webkitgtk-1.2.6-2.el6_0
    • Red Hat Enterprise Linux Workstation Optional (v. 6) webkitgtk-1.2.6-2.el6_0, webkitgtk-devel-1.2.6-2.el6_0, webkitgtk-doc-1.2.6-2.el6_0

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux Desktop (v. 6)Fixed RHSA-2011:0177
Red Hat Enterprise Linux Desktop Optional (v. 6)Fixed RHSA-2011:0177
Red Hat Enterprise Linux HPC Node Optional (v. 6)Fixed RHSA-2011:0177
Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2011:0177
Red Hat Enterprise Linux Server Optional (v. 6)Fixed RHSA-2011:0177
Red Hat Enterprise Linux Workstation (v. 6)Fixed RHSA-2011:0177
Red Hat Enterprise Linux Workstation Optional (v. 6)Fixed RHSA-2011:0177

Timeline

  1. 2026-10-02 Threatist record created from CVE-2010-4577
  2. 2026-10-03 Alias added: GHSA-9j34-5qgm-c4jh

References

Exploit 1

Patch 2

Advisory 7

Other 2

Sources

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