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Red Hat Linux 5.2: RHSA-2000:062-03 Critical: Glint Symlink Issue

glint blindly follows a symlink in /tmp, overwriting the target file, so it can conceivably be used to destroy any file on the system.. ` --------------------------------------------------------------------- Red Hat, Inc. Security Advisory Synopsis: glint symlink vulnerability Advisory ID: RHSA-2000:062-03 Issue date: 2000-09-19 Updated on: 2000-09-19 Product: Red Hat Linux Keywords: glint symlink rpm Cross references: N/A --------------------------------------------------------------------- 1. Topic: glint blindly follows a symlink in /tmp, overwriting the target file, so it can conceivably be used to destroy any file on the system. 2. Relevant releases/architectures: Red Hat Linux 5.2 - i386, alpha, sparc 3. Problem description: If a specific symlink exists in /tmp, glint will open it and write to it when run by root -- so destruction of any file is possible. Note that glint does not work with RPM 3.0 or higher. If you have RPM 3.0 or higher installed, just uninstall the glint package to remove this vulnerability. 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): 17544 - HUGE race condition in Glint 6. RPMs required: Red Hat Linux 5.2: sparc: alpha: i386: sources: 7. Verification: MD5 sum Package Name -------------------------------------------------------------------------- b31d4a967bba65a2acc17c16ca75582c 5.2/SRPMS/glint-2.6.3-1.src.rpm c9e1679ed0f8c1d15878eb8943be4b75 5.2/alpha/glint-2.6.3-1.alpha.rpm a74b4697402e5ce8f34959ebe2d5327d 5.2/i386/glint-2.6.3-1.i386.rpm 20d74bc2360f6622dc2062654dde84f9 5.2/sparc/glint-2.6.3-1.sparc.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 beencorrupted or tampered with, examine only the md5sum with the following command: rpm --checksig --nogpg 8. References: Thanks to Stan Bubrouski for finding and reporting this bug. Copyright(c) 2000 Red Hat, Inc. `. Explore the risks linked to symlink attacks in Red Hat Linux systems and uncover strong strategies to prevent file overwrite issues. Enhance your cybersecurity now!. Red Hat Linux, Glint Symlink, File Security, Threat Mitigation. . Severity: Critical. LinuxSecurity.com Team

Sep 20, 2000 •Critical Red Hat