3.2.7, 3.4.7, 3.6.1, and 3.7.2 Security AdvisoryThursday, August 5, 2010
Summary ======= Bugzilla is a Web-based bug-tracking system used by a large number of software projects. The following security issues have been discovered in Bugzilla: * It was possible to (at least partially) determine the membership of any group using the Search interface. * It was possible to use the 'sudo' feature without sending a notification to the user being impersonated. * The 'Reports' and 'Duplicates' pages let you guess the name of products you could not see, due to the error message that was thrown. * For installations using PostgreSQL, specifying "bug X" or "attachment X" in a comment would deny access to the bug if X was larger than the maximum 32-bit signed integer size. All affected installations are encouraged to upgrade as soon as possible. Vulnerability Details ===================== Class: Remote Information Disclosure Versions: 2.19.1 to 3.2.7, 3.3.1 to 3.4.7, 3.5.1 to 3.6.1, 3.7 to 3.7.2 Fixed In: 3.2.8, 3.4.8, 3.6.2, 3.7.3 Description: An unprivileged user is normally not allowed to view other users' group membership. But boolean charts let the user use group-based pronouns, indirectly disclosing group membership. This security fix restricts the use of pronouns to groups the user belongs to. References: https://bugzilla.mozilla.org/show_bug.cgi?id=417048 CVE Number: CVE-2010-2756 Class: Notification Bypass Versions: 2.22rc1 to 3.2.7, 3.3.1 to 3.4.7, 3.5.1 to 3.6.1, 3.7 to 3.7.2 Fixed In: 3.2.8, 3.4.8, 3.6.2, 3.7.3 Description: Normally, when a user is impersonated, he receives an email informing him that he is being impersonated, containing the identity of the impersonator. However, it was possible to impersonate a user without this notification being sent. References: https://bugzilla.mozilla.org/show_bug.cgi?id=450013 CVE Number: CVE-2010-2757 Class: Remote Information Disclosure Versions: 2.17.1 to 3.2.7, 3.3.1 to 3.4.7, 3.5.1 to 3.6.1, 3.7 to 3.7.2 Fixed In: 3.2.8, 3.4.8, 3.6.2, 3.7.3 Description: An error message thrown by the "Reports" and "Duplicates" page confirmed the non-existence of products, thus allowing users to guess confidential product names. (Note that the "Duplicates" page was not vulnerable in Bugzilla 3.6rc1 and above though.) References: https://bugzilla.mozilla.org/show_bug.cgi?id=577139 https://bugzilla.mozilla.org/show_bug.cgi?id=519835 CVE Number: CVE-2010-2758 Class: Denial of Service Versions: 2.23.1 to 3.2.7, 3.3.1 to 3.4.7, 3.5.1 to 3.6.1, 3.7 to 3.7.2 Fixed In: 3.2.8, 3.4.8, 3.6.2, 3.7.3 Description: If a comment contained the phrases "bug X" or "attachment X", where X was an integer larger than the maximum 32-bit signed integer size, PostgreSQL would throw an error, and any page containing that comment would not be viewable. On most Bugzillas, any user can enter a comment on any bug, so any user could have used this to deny access to one or all bugs. Bugzillas running on databases other than PostgreSQL are not affected. References: https://bugzilla.mozilla.org/show_bug.cgi?id=583690 CVE Number: CVE-2010-2759 Vulnerability Solutions ======================= The fixes for these issues are included in the 3.2.8, 3.4.8, 3.6.2, and 3.7.3 releases. Upgrading to a release with the relevant fixes will protect your installation from possible exploits of these issues. If you are unable to upgrade but would like to patch just the individual security vulnerabilities, there are patches available for each issue at the "References" URL for each vulnerability. Full release downloads, patches to upgrade Bugzilla from previous versions, and CVS/bzr upgrade instructions are available at: http://www.bugzilla.org/download/ Credits ======= The Bugzilla team wish to thank the following people/organizations for their assistance in locating, advising us of, and assisting us to fix this issue: Frédéric Buclin Max Kanat-Alexander Byron Jones Bradley Baetz Slava Buhtiarov General information about the Bugzilla bug-tracking system can be found at: http://www.bugzilla.org/ Comments and follow-ups can be directed to the mozilla.support.bugzilla newsgroup or the support-bugzilla mailing list. http://www.bugzilla.org/support/ has directions for accessing these forums.