kpdf, a Portable Document Format (PDF) viewer for KDE, is based on the xpdf program and thus suffers from similar flaws to those described in DSA-1790. The Common Vulnerabilities and Exposures project identifies the following problems: Multiple buffer overflows in the JBIG2 decoder in kpdf 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 kpdf 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 kpdf has unspecified impact related to "g*allocn." The JBIG2 decoder in kpdf 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 kpdf 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 kpdf allow remote attackers to execute arbitrary code via a crafted PDF file. Integer overflow in the JBIG2 decoder in kpdf allows remote attackers to execute arbitrary code via a crafted PDF file. The JBIG2 decoder in kpdf allows remote attackers to execute arbitrary code via a crafted PDF file that triggers a free of invalid data. The JBIG2 decoder in kpdf 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 kpdf allow remote attackers to execute arbitrary code via a crafted PDF file. The JBIG2 MMR decoder in kpdf allows remote attackers to cause a denial of service (infinite loop and hang) via a crafted PDF file. The old stable distribution (etch), these problems have been fixed in version 3.5.5-3etch3.