Red Hat Security Advisory 2012-1416-01 - The kdelibs packages provide libraries for the K Desktop Environment. Konqueror is a web browser. A heap-based buffer overflow flaw was found in the way the CSS parser in kdelibs parsed the location of the source for font faces. A web page containing malicious content could cause an application using kdelibs to crash or, potentially, execute arbitrary code with the privileges of the user running the application. A heap-based buffer over-read flaw was found in the way kdelibs calculated canvas dimensions for large images. A web page containing malicious content could cause an application using kdelibs to crash or disclose portions of its memory.
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