CVE-2010-4577: Debian Linux

High severity, CVSS 7.5. EPSS: 2.2% chance of exploitation in the next 30 days.

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."

Affected products

• Debian Debian Linux: version 6.0 only; version 7.0 only
• Fedoraproject Fedora: version 13 only
• Google Chrome: before 8.0.552.224 (fixed in 8.0.552.224)
• Google Chrome OS: before 8.0.552.343 (fixed in 8.0.552.343)
• WebKitGTK WebKitGTK: before 1.2.6 (fixed in 1.2.6)

Published 2010-12-22. Last modified 2026-06-16.