RHSA-2009:0430: Important: xpdf security update

Xpdf is an X Window System based viewer for Portable Document Format (PDF)files.Multiple integer overflow flaws were found in Xpdf's JBIG2 decoder. Anattacker could create a malicious PDF file that would cause Xpdf to crashor, potentially, execute arbitrary code when opened. (CVE-2009-0147,CVE-2009-1179)Multiple buffer overflow flaws were found in Xpdf's JBIG2 decoder. Anattacker could create a malicious PDF file that would cause Xpdf to crashor, potentially, execute arbitrary code when opened. (CVE-2009-0146,CVE-2009-1182)Multiple flaws were found in Xpdf's JBIG2 decoder that could lead to thefreeing of arbitrary memory. An attacker could create a malicious PDF filethat would cause Xpdf to crash or, potentially, execute arbitrary code whenopened. (CVE-2009-0166, CVE-2009-1180)Multiple input validation flaws were found in Xpdf's JBIG2 decoder. Anattacker could create a malicious PDF file that would cause Xpdf to crashor, potentially, execute arbitrary code when opened. (CVE-2009-0800)Multiple denial of service flaws were found in Xpdf's JBIG2 decoder. Anattacker could create a malicious PDF that would cause Xpdf to crash whenopened. (CVE-2009-0799, CVE-2009-1181, CVE-2009-1183)Red Hat would like to thank Braden Thomas and Drew Yao of the Apple ProductSecurity team, and Will Dormann of the CERT/CC for responsibly reportingthese flaws.Users are advised to upgrade to this updated package, which containsbackported patches to correct these issues.