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Fedora-Legacy alert FLSA:152583 (telnet)

From:  Marc Deslauriers <>
Subject:  [FLSA-2005:152583] Updated telnet packages fix security issues
Date:  Mon, 11 Jul 2005 18:28:25 -0400

--------------------------------------------------------------------- Fedora Legacy Update Advisory Synopsis: Updated telnet packages fix security issues Advisory ID: FLSA:152583 Issue date: 2005-07-11 Product: Red Hat Linux, Fedora Core Keywords: Bugfix CVE Names: CAN-2005-0468 CAN-2005-0469 --------------------------------------------------------------------- --------------------------------------------------------------------- 1. Topic: Updated telnet packages that fix two buffer overflow vulnerabilities are now available. The telnet package provides a command line telnet client. The telnet- server package includes a telnet daemon, telnetd, that supports remote login to the host machine. 2. Relevant releases/architectures: Red Hat Linux 7.3 - i386 Red Hat Linux 9 - i386 Fedora Core 1 - i386 3. Problem description: Two buffer overflow flaws were discovered in the way the telnet client handles messages from a server. An attacker may be able to execute arbitrary code on a victim's machine if the victim can be tricked into connecting to a malicious telnet server. The Common Vulnerabilities and Exposures project ( has assigned the names CAN-2005-0468 and CAN-2005-0469 to these issues. Users of telnet should upgrade to this updated package, which contains backported patches to correct these issues. 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 yum and apt. Many people find this an easier way to apply updates. To use yum issue: yum update or to use apt: apt-get update; apt-get upgrade This will start an interactive process that will result in the appropriate RPMs being upgraded on your system. This assumes that you have yum or apt-get configured for obtaining Fedora Legacy content. Please visit for directions on how to configure yum and apt-get. 5. Bug IDs fixed: 6. RPMs required: Red Hat Linux 7.3: SRPM: i386: Red Hat Linux 9: SRPM: i386: Fedora Core 1: SRPM: i386: 7. Verification: SHA1 sum Package Name --------------------------------------------------------------------- eb72994dc7fa63672d461f1b80189e450b7dc7ab redhat/7.3/updates/i386/telnet-0.17-20.1.legacy.i386.rpm ae27914b4039594609d14d209c466f78b09649d4 redhat/7.3/updates/i386/telnet-server-0.17-20.1.legacy.i386.rpm 3e426f9573240179fb31d5407ef9a25b82b836ec redhat/7.3/updates/SRPMS/telnet-0.17-20.1.legacy.src.rpm 114ead8f946fd9f50f88ed017f03a2302647ebd1 redhat/9/updates/i386/telnet-0.17-25.1.legacy.i386.rpm e5c31fdc2b08cd4a5614101be249a4888d87ded0 redhat/9/updates/i386/telnet-server-0.17-25.1.legacy.i386.rpm acf5dc1ab3bbe1d704963eefe79fb66521a012da redhat/9/updates/SRPMS/telnet-0.17-25.1.legacy.src.rpm 3298baa93d57f2caa2110bc83ae45731fc8c41e7 fedora/1/updates/i386/telnet-0.17-26.2.1.legacy.i386.rpm 208769de63330b46785dbe0b23502c37307dfa65 fedora/1/updates/i386/telnet-server-0.17-26.2.1.legacy.i386.rpm 58836e7c8741f08c5da712f6dc7cbd3d7a5581e8 fedora/1/updates/SRPMS/telnet-0.17-26.2.1.legacy.src.rpm These packages are GPG signed by Fedora Legacy for security. Our key is available from You can verify each package with the following command: rpm --checksig -v <filename> If you only wish to verify that each package has not been corrupted or tampered with, examine only the sha1sum with the following command: sha1sum <filename> 8. References: 9. Contact: The Fedora Legacy security contact is <>. More project details at ---------------------------------------------------------------------

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