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Fedora 11: ZNC 0.072-3 Critical: Data Traversal File Overwrite Fix

No CVE yet, one has been requested. Upgrade to 0.072 of ZNC, fixes security issue in bug 513152 An users data directory traversal flaw was found in the way ZNC used to handle file upload requests via Direct Client Connection (DCC) /dcc SEND messages. A remote IRC user could issue a /dcc SEND message with a specially-crafted content (file to upload), which once accepted by a local, unsuspecting ZNC user, would overwrite relevant files in the users/ /downloads data directory. . -------------------------------------------------------------------------------- Fedora Update Notification FEDORA-2009-7952 2009-07-23 18:32:04 -------------------------------------------------------------------------------- Name : znc Product : Fedora 11 Version : 0.072 Release : 3.fc11 URL : Summary : An advanced IRC bouncer Description : ZNC is an IRC bouncer with many advanced features like detaching, multiple users, per channel playback buffer, SSL, IPv6, transparent DCC bouncing, Perl and C++ module support to name a few. -------------------------------------------------------------------------------- Update Information: No CVE yet, one has been requested. Upgrade to 0.072 of ZNC, fixes security issue in bug 513152 An users data directory traversal flaw was found in the way ZNC used to handle file upload requests via Direct Client Connection (DCC) /dcc SEND messages. A remote IRC user could issue a /dcc SEND message with a specially-crafted content (file to upload), which once accepted by a local, unsuspecting ZNC user, would overwrite relevant files in the users/ /downloads data directory. -------------------------------------------------------------------------------- ChangeLog: -------------------------------------------------------------------------------- References: [ 1 ] Bug #513152 - ZNC: Users data directory traversal flaw via Direct Client Connection message https://bugzilla.redhat.com/show_bug.cgi?id=513152 -------------------------------------------------------------------------------- This update can be installed with the "yum" update program. Use su -c 'yum update znc' at the command line. For more information, refer to "Managing Software with yum", available at . All packages are signed with the Fedora Project GPG key. More details on the GPG keys used by the Fedora Project can be found at -------------------------------------------------------------------------------- _______________________________________________ Fedora-package-announce mailing list This email address is being protected from spambots. You need JavaScript enabled to view it. https://lists.fedoraproject.org/archives/list/This email address is being protected from spambots. You need JavaScript enabled to view it./ . Enhance ZNC to address security vulnerability enabling unauthorized file overwrites in user download folders on Fedora 11 instances.. ZNC Software,Fedora Updates,File Upload Security,IRC Bouncer Security,Data Traversal Issues. . Severity: Critical. LinuxSecurity.com Team

Jul 23, 2009 •Critical Fedora