Red Hat Linux 6.x Security Advisory

Red Hat, Inc. Security Advisory Synopsis xpdf bugfix release Advisory ID RHSA-2000:060-03 Issue Date 2000-09-13 Updated On 2000-09-13 Product Red Hat Linux Keywords security problem in temporary file and malicious URL. Cross References N/A 1. Topic: Security problem in temporary file and malicious URL. 2. Problem description: There is a security problem when using tmpnam() and fopen() in versions prior to 0.91. The problem is seen when a root user overwrites files where a symlink is created between the calls to tmpname() and fopen(). There is also a problem with URL-type links in PDF documents that contain quote characters which could also be used to execute arbitrary commands. The xpdf-0.91 fixes both these security problems. 3. Bug IDs fixed: (see bugzilla for more information) N/A - 4. Relevant releases/architectures: Red Hat Linux 5.2 - i386, alpha, sparc Red Hat Linux 6.2 - i386, alpha, sparc 5. RPMs required: Red Hat Linux 5.2: sparc: ftp://updates.redhat.com/5.2/en/os/sparc/xpdf-0.91-1.5x.sparc.rpm alpha: ftp://updates.redhat.com/5.2/en/os/alpha/xpdf-0.91-1.5x.alpha.rpm i386: ftp://updates.redhat.com/5.2/en/os/i386/xpdf-0.91-1.5x.i386.rpm sources: ftp://updates.redhat.com/5.2/en/os/SRPMS/xpdf-0.91-1.5x.src.rpm Red Hat Linux 6.2: sparc: ftp://updates.redhat.com/6.2/en/os/sparc/xpdf-0.91-1.6x.sparc.rpm alpha: ftp://updates.redhat.com/6.2/en/os/alpha/xpdf-0.91-1.6x.alpha.rpm i386: ftp://updates.redhat.com/6.2/en/os/i386/xpdf-0.91-1.6x.i386.rpm sources: ftp://updates.redhat.com/6.2/en/os/SRPMS/xpdf-0.91-1.6x.src.rpm 6. Solution: For each RPM for your particular architecture, run: rpm -Fvh [filename] where filename is the name of the RPM. 7. Verification: MD5 sum Package Name ------------------------------------------------------------------------- 1ca613dc77206c3529dab585e6f4fffd 5.2/en/os/SRPMS/xpdf-0.91-1.5x.src.rpm 20632cc51819d8a277636bc7e72041ea 5.2/en/os/alpha/xpdf-0.91-1.5x.alpha.rpm da4bfce20f17967f03697f7a141a7883 5.2/en/os/i386/xpdf-0.91-1.5x.i386.rpm 1707cdcbe06867e9d927c7c150b856e6 5.2/en/os/sparc/xpdf-0.91-1.5x.sparc.rpm 54136dd475eeea9f24bf0f7a1eb2d5d9 6.2/en/os/SRPMS/xpdf-0.91-1.6x.src.rpm db42b309ce51cf80661b1ea43141328b 6.2/en/os/alpha/xpdf-0.91-1.6x.alpha.rpm 7a00ef826fa8f5fa37246a78f4ddcc4a 6.2/en/os/i386/xpdf-0.91-1.6x.i386.rpm 8f442274085c2bb45c72f2920d4027d3 6.2/en/os/sparc/xpdf-0.91-1.6x.sparc.rpm These packages are GPG signed by Red Hat, Inc. for security. Our key is available at: http://www.redhat.com/about/contact.html You can verify each package with the following command: rpm --checksig filename If you only wish to verify that each package has not been corrupted or tampered with, examine only the md5sum with the following command: rpm --checksig --nogpg filename Note that you need RPM >= 3.0 to check GnuPG keys. 8. References: http://www.securityfocus.com/archive/1/79421