An array indexing error was found in the way xpdf / poppler parsed Type1 fonts embedded in PDF documents. In FoFiType1::parse(), text representation of the numeric code value was converted to integer value using atoi(). This value was checked to ensure it's less than 256, but there was no check to ensure it's not negative (string passed to atoi() was checked to only contain characters '0'-'9' before the call though). On platforms, where atoi() could return negative result when parsing large positive values (exceeding INTMAX), this could could lead to write out of array bounds due to use of negative index.
poppler upstream commit: http://cgit.freedesktop.org/poppler/poppler/commit/?id=39d140bfc0b8239bdd96d6a55842034ae5c05473
Reference: http://secunia.com/advisories/41596/
Integer overflow in the JBIG2 decoder in Xpdf 3.02pl2 and earlier, as used in Poppler and other products, when running on Mac OS X, has unspecified impact, related to "gallocn."
The JBIG2 decoder in Xpdf 3.02pl2 and earlier, CUPS 1.3.9 and earlier, Poppler before 0.10.6, and other products allows remote attackers to cause a denial of service (crash) via a crafted PDF file that triggers an out-of-bounds read.
Heap-based buffer overflow in Xpdf 3.02pl2 and earlier, CUPS 1.3.9, and probably other products, allows remote attackers to execute arbitrary code via a PDF file with crafted JBIG2 symbol dictionary segments.
Multiple "input validation flaws" in the JBIG2 decoder in Xpdf 3.02pl2 and earlier, CUPS 1.3.9 and earlier, Poppler before 0.10.6, and other products allow remote attackers to execute arbitrary code via a crafted PDF file.
A security flaw was found in the JBIG2 decoder (possibility of freeing of uninitialized memory). An attacker could use this flaw to potentially cause a denial of service (application crash).
Acknowledgements:
Red Hat would like to thank Braden Thomas and Drew Yao of the Apple Product Security team for responsibly reporting this flaw.
Multiple integer overflows and one integer signedness error were found in the JBIG2 decoder. An attacker could use these flaws to cause a denial of service (application crash) via specially-crafted PDF file.
Acknowledgements:
Red Hat would like to thank Braden Thomas and Drew Yao of the Apple Product Security team for responsibly reporting these flaws.
Multiple buffer overflows in the JBIG2 decoder in Xpdf 3.02pl2 and earlier, CUPS 1.3.9 and earlier, and other products allow remote attackers to cause a denial of service (crash) via a crafted PDF file, related to (1) JBIG2SymbolDict::setBitmap and (2) JBIG2Stream::readSymbolDictSeg.