Red Hat Linux 6.2 Powertools Security Advisory

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Red Hat, Inc. Security Advisory Synopsis mopd-linux buffer overflow Advisory ID RHSA-2000:050-01 Issue Date 2000-08-08 Updated On 2000-08-08 Product Red Hat Powertools Keywords N/A Cross References N/A 1. Topic: A buffer overflow has been discovered in all releases of mopd-linux included in the 6.0, 6.1, and 6.2 releases of Powertools. 2. Problem description: This vulnerability allows long file names to be sent from the client to the server, causing the buffer overflow. The server also used filenames supplied from the client directly as a part of a format string in a syslog function call. 3. Bug IDs fixed: (see bugzilla for more information) N/A - 4. Relevant releases/architectures: Red Hat Powertools 6.0 - i386, alpha, sparc Red Hat Powertools 6.1 - i386, alpha, sparc Red Hat Powertools 6.2 - i386, alpha, sparc 5. RPMs required: Red Hat Powertools 6.2: sparc: ftp://updates.redhat.com/powertools/6.2/en/os/sparc/mopd-linux-2.5.3-15.sparc.rpm alpha: ftp://updates.redhat.com/powertools/6.2/en/os/alpha/mopd-linux-2.5.3-15.alpha.rpm i386: ftp://updates.redhat.com/powertools/6.2/en/os/i386/mopd-linux-2.5.3-15.i386.rpm sources: ftp://updates.redhat.com/powertools/6.2/en/os/SRPMS/mopd-linux-2.5.3-15.src.rpm 6. Solution: First download and install the newest RPM errata. It will be needed to properly install the umb-scheme package. See the following errata update for more information on upgrading RPM: RHEA-2000:051-01 Then, 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 ------------------------------------------------------------------------- 10f887fdc317e26bf94259a9c05d6212 6.2/en/os/SRPMS/mopd-linux-2.5.3-15.src.rpm 2f6bc5399f035de67197ad2d3eb96c03 6.2/en/os/alpha/mopd-linux-2.5.3-15.alpha.rpm e26174dae148d37dbfc78c306cd6daa5 6.2/en/os/i386/mopd-linux-2.5.3-15.i386.rpm 8f54499ea64372f17a5707d4615edddc 6.2/en/os/sparc/mopd-linux-2.5.3-15.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.openbsd.org/security.html#27 Thanks to Matt Power <mhpower@MIT.EDU> for making us aware of this vulnerability.