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Fedora Core 2: 2004-131 Critical Cvs Heap Overflow Issue

Stefan Esser discovered a flaw in cvs where malformed "Entry" linescould cause a heap overflow.. Fedora Update Notification FEDORA-2004-131 2004-05-19 --------------------------------------------------------------------- Product : Fedora Core 2 Name : cvs Version : 1.11.15 Release : 6 Summary : A version control system. Description : CVS (Concurrent Version System) is a version control system that can record the history of your files (usually, but not always, source code). CVS only stores the differences between versions, instead of every version of every file you have ever created. CVS also keeps a log of who, when, and why changes occurred. CVS is very helpful for managing releases and controlling the concurrent editing of source files among multiple authors. Instead of providing version control for a collection of files in a single directory, CVS provides version control for a hierarchical collection of directories consisting of revision controlled files. These directories and files can then be combined together to form a software release. --------------------------------------------------------------------- Update Information: Stefan Esser discovered a flaw in cvs where malformed "Entry" lines could cause a heap overflow. An attacker who has access to a CVS server could use this flaw to execute arbitrary code under the UID which the CVS server is executing. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2004-0396 to this issue. This update includes a patch by Derek Price, based on a patch by Stefan Esser, which corrects this flaw. --------------------------------------------------------------------- * Tue May 18 2004 Nalin Dahyabhai 1.11.15-6 - rebuild * Thu May 13 2004 Nalin Dahyabhai 1.11.15-5 - use revised version of Stefan Esser's patch provided by Derek Robert Price * Mon May 03 2004 Nalin Dahyabhai 1.11.15-4 - rebuild * Mon May 03 2004 Nalin Dahyabhai 1.11.15-3 - addpatch from Stefan Esser to close CAN-2004-0396 --------------------------------------------------------------------- This update can be downloaded from: e4e908430953b43fcd8543b4cf3ba123 SRPMS/cvs-1.11.15-6.src.rpm a05f5a97fa3e6b9a51eba6f418b51092 i386/cvs-1.11.15-6.i386.rpm 8484fea6acfc241e351a16ad9199db47 i386/debug/cvs-debuginfo-1.11.15-6.i386.rpm 727d6b8fa0bd49ef2c9bbe4cf3205250 x86_64/cvs-1.11.15-6.x86_64.rpm b7ad37eee7739318c78985d2b598f878 x86_64/debug/cvs-debuginfo-1.11.15-6.x86_64.rpm This update can also be installed with the Update Agent; you can launch the Update Agent with the 'up2date' command. -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Fedora Update Notification FEDORA-2004-126 2004-05-19 --------------------------------------------------------------------- Product : Fedora Core 1 Name : cvs Version : 1.11.15 Release : 5 Summary : A version control system. Description : CVS (Concurrent Version System) is a version control system that can record the history of your files (usually, but not always, source code). CVS only stores the differences between versions, instead of every version of every file you have ever created. CVS also keeps a log of who, when, and why changes occurred. CVS is very helpful for managing releases and controlling the concurrent editing of source files among multiple authors. Instead of providing version control for a collection of files in a single directory, CVS provides version control for a hierarchical collection of directories consisting of revision controlled files. These directories and files can then be combined together to form a software release. --------------------------------------------------------------------- Update Information: Stefan Esser discovered a flaw in cvs where malformed "Entry" lines could cause a heap overflow. An attacker who has access to a CVS server could use this flaw to execute arbitrary code under the UID which the CVSserver is executing. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2004-0396 to this issue. This update includes a patch by Derek Price, based on a patch by Stefan Esser, which corrects this flaw. --------------------------------------------------------------------- * Thu May 13 2004 Nalin Dahyabhai 1.11.15-5 - use revised version of Stefan Esser's patch provided by Derek Robert Price * Mon May 03 2004 Nalin Dahyabhai 1.11.15-4 - rebuild * Mon May 03 2004 Nalin Dahyabhai 1.11.15-3 - add patch from Stefan Esser to close CAN-2004-0396 --------------------------------------------------------------------- This update can be downloaded from: 6de72febc153af0e5e8b1670372c767e SRPMS/cvs-1.11.15-5.src.rpm 0e70cb1a6940f6b2b7b71b64ada84e0a i386/cvs-1.11.15-5.i386.rpm e7bb5244e9e067b6cc22b2f408ada206 i386/debug/cvs-debuginfo-1.11.15-5.i386.rpm 6dc5672173170e2a3b1a89a8f928364e x86_64/cvs-1.11.15-5.x86_64.rpm e9ae30cfbc082e6e7f1a0ad8e0d0a37f x86_64/debug/cvs-debuginfo-1.11.15-5.x86_64.rpm This update can also be installed with the Update Agent; you can launch the Update Agent with the 'up2date' command. . A critical update for cvs in Fedora addresses a significant heap overflow flaw that may enable remote code execution. Update promptly to safeguard your systems.. Fedora Update,cvs Exploit,heap overflow patch. . Severity: Critical. LinuxSecurity.com Team

May 19, 2004 •Critical Fedora