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Red Hat Linux: RHSA-2003:079-01 Critical: Gzprintf Buffer Overflow Fix

Updated zlib packages are now available which fix a buffer overflow vulnerability. . `` --------------------------------------------------------------------- Red Hat Security Advisory Synopsis: Updated zlib packages fix gzprintf buffer overflow vulnerability Advisory ID: RHSA-2003:079-01 Issue date: 2003-04-29 Updated on: 2003-04-29 Product: Red Hat Linux Keywords: gzprintf buffer overflow Cross references: Obsoletes: CVE Names: CAN-2003-0107 ---------------------------------------------------------------------1. Topic: Updated zlib packages are now available which fix a buffer overflow vulnerability. 2. Relevant releases/architectures: Red Hat Linux 7.1 - i386 Red Hat Linux 7.2 - i386, ia64 Red Hat Linux 7.3 - i386 Red Hat Linux 8.0 - i386 3. Problem description: Zlib is a general-purpose, patent-free, lossless data compression library used by many different programs. The function gzprintf within zlib, when called with a string longer than Z_PRINTF_BUFZISE (= 4096 bytes), can overflow without giving a warning. zlib-1.1.4 and earlier exhibit this behavior. There are no known exploits of the gzprintf overrun, and only a few programs, including rpm2html and gimp-print, are known to use the gzprintf function. The problem has been fixed by checking the length of the output string within gzprintf. 4. Solution: Before applying this update, make sure all previously released errata relevant to your system have been applied. To update all RPMs for your particular architecture, run: rpm -Fvh [filenames] where [filenames] is a list of the RPMs you wish to upgrade. Only those RPMs which are currently installed will be updated. Those RPMs which are not installed but included in the list will not be updated. Note that you can also use wildcards (*.rpm) if your current directory *only* contains the desired RPMs. Please note that this update is also available via RedHat Network. Many people find this an easier way to apply updates. To use Red Hat Network, launch the Red Hat Update Agent with the following command: up2date This will start an interactive process that will result in the appropriate RPMs being upgraded on your system. 5. Bug IDs fixed ( for more info): 84961 - buffer overrun on gzprintf 6. RPMs required: Red Hat Linux 7.1: SRPMS: i386: Red Hat Linux 7.2: SRPMS: i386: ia64: Red Hat Linux 7.3: SRPMS: i386: Red Hat Linux 8.0: SRPMS: i386: 7. Verification: MD5 sum Package Name --------------------------------------------------------------------------2a540854e1b366583f46f2cb9d12d76a 7.1/en/os/SRPMS/zlib-1.1.4-8.7x.src.rpm c364711c074bbb9c6fb9c81d5c183c04 7.1/en/os/i386/zlib-1.1.4-8.7x.i386.rpm aeb4221c4d816c8d750f993051c4e9da 7.1/en/os/i386/zlib-devel-1.1.4-8.7x.i386.rpm 2a540854e1b366583f46f2cb9d12d76a 7.2/en/os/SRPMS/zlib-1.1.4-8.7x.src.rpm c364711c074bbb9c6fb9c81d5c183c04 7.2/en/os/i386/zlib-1.1.4-8.7x.i386.rpm aeb4221c4d816c8d750f993051c4e9da 7.2/en/os/i386/zlib-devel-1.1.4-8.7x.i386.rpm 654a4dd09a48b3524ddd3b721e6407c2 7.2/en/os/ia64/zlib-1.1.4-8.7x.ia64.rpm bd9506cf823b2888459844d3e4998be7 7.2/en/os/ia64/zlib-devel-1.1.4-8.7x.ia64.rpm 2a540854e1b366583f46f2cb9d12d76a 7.3/en/os/SRPMS/zlib-1.1.4-8.7x.src.rpm c364711c074bbb9c6fb9c81d5c183c04 7.3/en/os/i386/zlib-1.1.4-8.7x.i386.rpm aeb4221c4d816c8d750f993051c4e9da 7.3/en/os/i386/zlib-devel-1.1.4-8.7x.i386.rpm fe4170379794e81a2609fa7e71310588 8.0/en/os/SRPMS/zlib-1.1.4-8.8x.src.rpm fb1db2a01b5366cb40f98fda4507024e 8.0/en/os/i386/zlib-1.1.4-8.8x.i386.rpm 9b4caed6d7487dbd65897b4932403dc7 8.0/en/os/i386/zlib-devel-1.1.4-8.8x.i386.rpm These packages are GPG signed by Red Hat for security. Our key is available at All Red Hat products You can verify each package with the following command: rpm --checksig -v If you only wish toverify that each package has not been corrupted or tampered with, examine only the md5sum with the following command: md5sum 8. References: CVE -CVE-2003-0107 9. Contact: The Red Hat security contact is . More contact details at All Red Hat products Copyright 2003 Red Hat, Inc. _______________________________________________ Red Hat-watch-list mailing list To unsubscribe, visit: ``. Stay updated on Red Hat's fix for the gzprintf buffer overflow in zlib packages to ensure system security.. Red Hat Linux, zlib package, buffer overflow fix, gzprintf update. . Severity: Critical. LinuxSecurity.com Team

Jun 30, 2023 •Critical Red Hat