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Red Hat Enterprise Linux 2.1 RHSA-2004:383-01 High: Glibc Remote Code Exec

Updated glibc packages that fix a security flaw in the resolver as well as dlclose handling are now available.. Red Hat Security Advisory Synopsis: Updated glibc packages fix flaws Advisory ID: RHSA-2004:383-01 Issue date: 2004-08-04 Updated on: 2004-08-04 Product: Red Hat Enterprise Linux Keywords: glibc libdl ld.so dlclose umount CVE Names: CAN-2002-0029 - --------------------------------------------------------------------- 1. Summary: Updated glibc packages that fix a security flaw in the resolver as well as dlclose handling are now available. 2. Relevant releases/architectures: Red Hat Enterprise Linux AS (Advanced Server) version 2.1 - i386, i686, ia64 Red Hat Linux Advanced Workstation 2.1 - ia64 Red Hat Enterprise Linux ES version 2.1 - i386, i686 Red Hat Enterprise Linux WS version 2.1 - i386, i686 3. Problem description: The GNU libc packages (known as glibc) contain the standard C libraries used by applications. A security audit of the glibc packages in Red Hat Enterprise Linux 2.1 found a flaw in the resolver library which was originally reported as affecting versions of ISC BIND 4.9. This flaw also applied to glibc versions before 2.3.2. An attacker who is able to send DNS responses (perhaps by creating a malicious DNS server) could remotely exploit this vulnerability to execute arbitrary code or cause a denial of service. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2002-0029 to this issue. These updated packages also fix a dlclose function bug on certain shared libraries, which caused program crashes. All users of glibc should upgrade to these updated packages, which resolve these issues. 4. Solution: Before applying this update, make sure that all previously-released errata relevant to your system have been applied. Use Red Hat Network to download and update your packages. To launch the Red Hat Update Agent, use the following command: up2date For information on how toinstall packages manually, refer to the following Web page for the System Administration or Customization guide specific to your system: https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/10/ 5. Bug IDs fixed (http://bugzilla.redhat.com/ for more info): 120907 - umount passes randmon flags to sys_umount in kernel 6. RPMs required: Red Hat Enterprise Linux AS (Advanced Server) version 2.1: SRPMS: b4d2a8e68ab0c47b20a3e8f28c388011 glibc-2.2.4-32.17.src.rpm i386: 7089eff3f030f73c37b16691a34a2b97 glibc-2.2.4-32.17.i386.rpm fb411e71f3ba6fe81f46fa4acbde876f glibc-common-2.2.4-32.17.i386.rpm 93003bc237e963643e84c6b7d63cc97f glibc-devel-2.2.4-32.17.i386.rpm a3bd7862248bcd16dce99aee952bf68b glibc-profile-2.2.4-32.17.i386.rpm acd91794ce623d27a77522bd5c750d21 nscd-2.2.4-32.17.i386.rpm i686: 3759263848efde88bcecb0eb404772ab glibc-2.2.4-32.17.i686.rpm ia64: d08bed26e615ddf28be28dbda0ec9d39 glibc-2.2.4-32.17.ia64.rpm db4c6bf46928d2df68a19ce16e4f2a46 glibc-common-2.2.4-32.17.ia64.rpm a86dc32711365bfbf1b46e7218b2a413 glibc-devel-2.2.4-32.17.ia64.rpm 8ed7e292bf7d08d2c7a94e48ce6a3bec glibc-profile-2.2.4-32.17.ia64.rpm 0f898c80d110feaebbf115bd3a73a546 nscd-2.2.4-32.17.ia64.rpm Red Hat Linux Advanced Workstation 2.1: SRPMS: b4d2a8e68ab0c47b20a3e8f28c388011 glibc-2.2.4-32.17.src.rpm ia64: d08bed26e615ddf28be28dbda0ec9d39 glibc-2.2.4-32.17.ia64.rpm db4c6bf46928d2df68a19ce16e4f2a46 glibc-common-2.2.4-32.17.ia64.rpm a86dc32711365bfbf1b46e7218b2a413 glibc-devel-2.2.4-32.17.ia64.rpm 8ed7e292bf7d08d2c7a94e48ce6a3bec glibc-profile-2.2.4-32.17.ia64.rpm 0f898c80d110feaebbf115bd3a73a546 nscd-2.2.4-32.17.ia64.rpm Red Hat Enterprise Linux ES version 2.1: SRPMS: b4d2a8e68ab0c47b20a3e8f28c388011 glibc-2.2.4-32.17.src.rpm i386: 7089eff3f030f73c37b16691a34a2b97 glibc-2.2.4-32.17.i386.rpm fb411e71f3ba6fe81f46fa4acbde876f glibc-common-2.2.4-32.17.i386.rpm 93003bc237e963643e84c6b7d63cc97f glibc-devel-2.2.4-32.17.i386.rpm a3bd7862248bcd16dce99aee952bf68b glibc-profile-2.2.4-32.17.i386.rpm acd91794ce623d27a77522bd5c750d21 nscd-2.2.4-32.17.i386.rpm i686: 3759263848efde88bcecb0eb404772ab glibc-2.2.4-32.17.i686.rpm Red Hat Enterprise Linux WS version 2.1: SRPMS: b4d2a8e68ab0c47b20a3e8f28c388011 glibc-2.2.4-32.17.src.rpm i386: 7089eff3f030f73c37b16691a34a2b97 glibc-2.2.4-32.17.i386.rpm fb411e71f3ba6fe81f46fa4acbde876f glibc-common-2.2.4-32.17.i386.rpm 93003bc237e963643e84c6b7d63cc97f glibc-devel-2.2.4-32.17.i386.rpm a3bd7862248bcd16dce99aee952bf68b glibc-profile-2.2.4-32.17.i386.rpm acd91794ce623d27a77522bd5c750d21 nscd-2.2.4-32.17.i386.rpm i686: 3759263848efde88bcecb0eb404772ab glibc-2.2.4-32.17.i686.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from 7. References: cert CVE -CVE-2002-0029 8. Contact: The Red Hat security contact is . More contact details at Copyright 2004 Red Hat, Inc. . Latest patches for glibc libraries address critical flaws in resolver and dlclose functionalities, essential for system managers on Red Hat platforms.. glibc update, Red Hat patch, security fixes, library exploit. . Severity: Critical. LinuxSecurity.com Team

Aug 11, 2004 •Critical Red Hat