Security Advisory for Bugzilla 2.20.3, 2.22.1, and 2.23.3

Credit: Bugzilla team
Risk: Low
Local: No
Remote: Yes

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Summary ======= Bugzilla is a Web-based bug-tracking system, used by a large number of software projects. This advisory covers two security issues that have recently been fixed in the Bugzilla code: + A possible cross-site scripting (XSS) vulnerability in Atom feeds produced by Bugzilla. + Web server settings given by Bugzilla which provide security settings to protect data files from access via the web are overridden by the mod_perl startup script when running under mod_perl (development snapshot only). We strongly advise that 2.20.x users should upgrade to 2.20.4. 2.22 users, and users of 2.16.x or below, should upgrade to 2.22.2. Versions 2.18.x are not affected by either of these vulnerabilities. Development snapshots of 2.23 before 2.23.4 are also vulnerable to all of these issues. If you are using a development snapshot, you should upgrade to 2.23.4, use CVS to update, or apply the patches from the specific bugs listed below. Vulnerability Details ===================== Issue 1 - ------- Class: Cross-Site Scripting Versions: 2.20.1 and above Description: Bugzilla does not properly escape some fields in generated Atom feeds, which leads to the potential for cross-site scripting in feed readers that support javascript and properly implement the Atom feed specification. Reference: Issue 2 - ------- Class: Database password disclosure Versions: 2.23.3 only Description: Bugzilla development snapshot version 2.23.3 introduced the ability to run Bugzilla under mod_perl on Apache. The mod_perl initialization script included with Bugzilla defines a new <Directory> block in the Apache configuration for the directory containing Bugzilla. This block fails to include permission for .htaccess files to override file access permissions. The .htaccess file shipped with Bugzilla prohibits access by web browsers to read the localconfig file, which contains the username and password for connecting to the database server. If you are not running Bugzilla under mod_perl, then this does not affect you. Reference: Vulnerability Solutions ======================= The fixes for all of the security bugs mentioned in this advisory are included in the 2.20.4, 2.22.2, and 2.23.4 releases. Upgrading to these releases will protect installations from possible exploits of these issues. Full release downloads, patches to upgrade Bugzilla from previous versions, and CVS upgrade instructions are available at: Specific patches for each of the individual issues can be found on the corresponding bug reports for each issue, at the URL given in the reference for that issue in the list above. Credits ======= The Bugzilla team wish to thank the following people for their assistance in locating, advising us of, and assisting us to fix these situations: Frdric Buclin Dave Miller Olav Vitters Max Kanat-Alexander General information about the Bugzilla bug-tracking system can be found at: Comments and follow-ups can be directed to the newsgroup or the support-bugzilla mailing list. has directions for accessing these forums. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) iD8DBQFFw96laL2D/aEJPK4RAnNoAJ0R0Gz0Q8B5FkVx6NeMu5ReMtyhMACeOQ+P AOlfSHsEKMJRrL1WV6Xl+VY= =RcCp -----END PGP SIGNATURE-----

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