Several vulnerabilities have been identified in xpdf, a suite of tools for viewing and converting Portable Document Format (PDF) files. The Common Vulnerabilities and Exposures project identifies the following problems: 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. Multiple integer 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) JBIG2Stream::readSymbolDictSeg, (2) JBIG2Stream::readSymbolDictSeg, and (3) JBIG2Stream::readGenericBitmap. 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 "g*allocn." The JBIG2 decoder in Xpdf 3.02pl2 and earlier, CUPS 1.3.9 and earlier, and other products allows remote attackers to cause a denial of service (crash) via a crafted PDF file that triggers a free of uninitialized memory. 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. 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. Integer overflow in 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 execute arbitrary code via a crafted PDF file. 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 execute arbitrary code via a crafted PDF file that triggers a free of invalid data. 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 a NULL pointer dereference. Multiple buffer overflows in the JBIG2 MMR 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. The JBIG2 MMR 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 (infinite loop and hang) via a crafted PDF file.