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CVE-2010-0169

The CSSLoaderImpl::DoSheetComplete function in layout/style/nsCSSLoader.cpp in Mozilla Firefox 3.0.x before 3.0.18, 3.5.x before 3.5.8, and 3.6.x before 3.6.2;…

Impact

The CSSLoaderImpl::DoSheetComplete function in layout/style/nsCSSLoader.cpp in Mozilla Firefox 3.0.x before 3.0.18, 3.5.x before 3.5.8, and 3.6.x before 3.6.2; Thunderbird before 3.0.2; and SeaMonkey before 2.0.3 changes the case of certain strings in a stylesheet before adding this stylesheet to the XUL cache, which might allow remote attackers to modify the browser's font and other CSS attributes, and potentially disrupt rendering of a web page, by forcing the browser to perform this erroneous stylesheet caching.

Affected products

VendorProductAffected versions
MozillaFirefox
Versions 3.0, 3.0.1, 3.0.10, 3.0.11, 3.0.12, 3.0.13
MozillaSeamonkey
through 2.0.2
Versions 1.1, 1.1.1, 1.1.2, 1.1.3, 1.1.4
MozillaThunderbird
through 3.0.1
Versions 1.5, 1.5.0.1, 1.5.0.2, 1.5.0.3, 1.5.0.4

References