5392496 2000-08-23 21:28 /90 rader/ Brevbäraren (som är implementerad i) Python Mottagare: Bugtraq (import) <12369> Mottagare: Root (@) Nationernas Hus <12007> Sänt: 2000-08-28 18:12 Mottagare: Red Hat Announce (import) <1562> Sänt: 2000-08-28 18:13 Ärende: [RHSA-2000:055-03] XChat can pass URLs from IRC to a shell ------------------------------------------------------------ From: bugzilla@REDHAT.COM To: BUGTRAQ@SECURITYFOCUS.COM Message-ID: <200008231638.MAA21529@lacrosse.corp.redhat.com> --------------------------------------------------------------------- Red Hat, Inc. Security Advisory Synopsis: XChat can pass URLs from IRC to a shell Advisory ID: RHSA-2000:055-03 Issue date: 2000-08-22 Updated on: 2000-08-23 Product: Red Hat Linux Keywords: XChat IRC shell Cross references: N/A --------------------------------------------------------------------- 1. Topic: A new XChat package is available that fixes a possible security hole. 2. Relevant releases/architectures: Red Hat Linux 6.2 - i386, alpha, sparc 3. Problem description: XChat allows users to right-click on a URL appearing in an IRC discussion and select "Open in Browser." To open the URL in a browser, XChat passes it to /bin/sh. So, a malicious URL could execute arbitrary shell commands as the user running XChat. This errata changes XChat to bypass the shell and execute the browser directly. 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 (http://bugzilla.redhat.com/bugzilla for more info): N/A 6. RPMs required: Red Hat Linux 6.2: sparc: ftp://updates.redhat.com/6.2/sparc/xchat-1.4.0-2.sparc.rpm alpha: ftp://updates.redhat.com/6.2/alpha/xchat-1.4.0-2.alpha.rpm i386: ftp://updates.redhat.com/6.2/i386/xchat-1.4.0-2.i386.rpm sources: ftp://updates.redhat.com/6.2/SRPMS/xchat-1.4.0-2.src.rpm 7. Verification: MD5 sum Package Name -------------------------------------------------------------------------- 0642e627980c723b64a865662b27c638 6.2/SRPMS/xchat-1.4.0-2.src.rpm 79491287b1b683bd882f5ddcf0429018 6.2/alpha/xchat-1.4.0-2.alpha.rpm 285f31993a4084659c38b13d3f8f9c41 6.2/i386/xchat-1.4.0-2.i386.rpm 5878e8cd14c2aacb59ea3d05e379ca67 6.2/sparc/xchat-1.4.0-2.sparc.rpm These packages are GPG signed by Red Hat, Inc. for security. Our key is available at: http://www.redhat.com/corp/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> 8. References: Reported to BUGTRAQ by Zenith Parsec. Copyright(c) 2000 Red Hat, Inc. (5392496) ------------------------------------------