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Red Hat 5.0-7.0: RHSA-2000:114-03 Critical Ghostscript Issue

ghostscript makes use of mktemp instead of mkstemp to create temp files.. ` --------------------------------------------------------------------- Red Hat, Inc. Security Advisory Synopsis: ghostscript uses mktemp instead of mkstemp, and uses an improper LD_RUN_PATH Advisory ID: RHSA-2000:114-03 Issue date: 2000-11-22 Updated on: 2000-11-22 Product: Red Hat Linux Keywords: ghostscript mktemp LD_RUN_PATH Cross references: N/A --------------------------------------------------------------------- 1. Topic: ghostscript makes use of mktemp instead of mkstemp to create temp files; and also uses improper LD_RUN_PATH values, causing it to search for libraries in the current directory. 2. Relevant releases/architectures: Red Hat Linux 5.0 - i386, alpha, sparc Red Hat Linux 5.1 - i386, alpha, sparc Red Hat Linux 5.2 - i386, alpha, sparc Red Hat Linux 6.0 - i386, alpha, sparc Red Hat Linux 6.1 - i386, alpha, sparc Red Hat Linux 6.2 - i386, alpha, sparc Red Hat Linux 7.0 - i386 3. Problem description: ghostscript makes use of mktemp to create temp files, which is an insecure and predictable apporoach, it is now patched to use mkstemp, which avoid the race condition on the name. It also uses improper LD_RUN_PATH values, causing ghostscript to search for libraries to load in current directorys. 4. Solution: For each RPM for your particular architecture, run: rpm -Fvh [filename] where filename is the name of the RPM. 5. Bug IDs fixed ( for more info): 20924 - gs reads libraries from current directory 6. RPMs required: Red Hat Linux 5.2: alpha: sparc: i386: sources: Red Hat Linux 6.2: alpha: sparc: i386: sources: Red Hat Linux 7.0: i386: sources: 7. Verification: MD5 sum Package Name -------------------------------------------------------------------------- d44d8436655d25ca53d0c4a87c5c7c77 5.2/SRPMS/ghostscript-4.03-2.src.rpm 1c8363a912a6f538312b3e457664d0eb 5.2/alpha/ghostscript-4.03-2.alpha.rpm e11e7ec51f8e6051e50c5a93738f49ed 5.2/i386/ghostscript-4.03-2.i386.rpm d3550b9fa695207b1405ce12a848eae2 5.2/sparc/ghostscript-4.03-2.sparc.rpm e8c166031f02c9659f41a7e83ff4c97e 6.2/SRPMS/ghostscript-5.50-8_6.x.src.rpm 2e2944851c391f4ef50394d6b0c4a76a 6.2/alpha/ghostscript-5.50-8_6.x.alpha.rpm 9a4b61ddea7d18722198b772d6164619 6.2/i386/ghostscript-5.50-8_6.x.i386.rpm fba7b417faaf19629642325ec6f34b84 6.2/sparc/ghostscript-5.50-8_6.x.sparc.rpm 6ad7beeb79d23f32ad320a659f5591d6 7.0/SRPMS/ghostscript-5.50-8.src.rpm 0d5f4448d5245721b1e2762f360791f2 7.0/i386/ghostscript-5.50-8.i386.rpm These packages are GPG signed by Red Hat, Inc. for security. Our key is available at: You can verify each package with the following command: rpm --checksig 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 8. References: N/A Copyright(c) 2000 Red Hat, Inc. `. Analyzing the Ghostscript security alert for Red Hat distributions, we must assess mktemp vulnerabilities that may result in file race conditions and the risk of exposing confidential data. ghostscript security, Red Hat advisory, temp file issues, software patching. . Severity: Critical. LinuxSecurity.com Team

Nov 22, 2000 •Critical Red Hat