CVE-2010-4577

HIGH
7.5
CVSS Score
Published: December 22, 2010 at 12:00 AM UTC
Updated: June 16, 2026 at 11:25 PM UTC
5 products affected across 4 vendorsDebian LinuxChromeFedora

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Severity
HIGH7.5
Exploit prediction
EPSS 2%
SSVC
No known exploit

Description

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 8.0.552.224
Affected range stops below 8.0.552.224, so it looks safe — our inference, not a vendor statement
v < 8.0.552.343
Affected range stops below 8.0.552.343, so it looks safe — our inference, not a vendor statement
v < 1.2.6
Affected range stops below 1.2.6, so it looks safe — our inference, not a vendor statement

References (15)

x_refsource_CONFIRMExploitIssue TrackingMailing List
http://code.google.com/p/chromium/issues/detail?id=63866
Vendor Advisoryx_refsource_FEDORAMailing ListThird Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2011-January/052906.html
Third Party Advisoryx_refsource_SECUNIABroken Link
http://secunia.com/advisories/42648
Third Party Advisoryx_refsource_SECUNIABroken Link
http://secunia.com/advisories/43086
x_refsource_MISCMailing ListPatch
http://trac.webkit.org/changeset/72685
Vendor Advisoryx_refsource_DEBIANMailing ListThird Party Advisory
http://www.debian.org/security/2011/dsa-2188

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-125CWE-843

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