Mandriva Linux Security Advisory 2010-201 - Marc Schoenefeld found an input stream position error in the way FreeType font rendering engine processed input file streams. If a user loaded a specially-crafted font file with an application linked against FreeType and relevant font glyphs were subsequently rendered with the X FreeType library, it could cause the application to crash or, possibly execute arbitrary code (integer overflow leading to heap-based buffer overflow in the libXft library) with the privileges of the user running the application. Different vulnerability than CVE-2010-1797.
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