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

fedora
Calendar Grey July 23, 2009
Dist Fedora Esm H88
Enhance ZNC to address security vulnerability enabling unauthorized file overwrites in user download folders on Fedora 11 instances.
No CVE yet, one has been requested

Summary

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.

Topics%20covered

Topics Covered

security advisory fedora critical file overwrite data traversal irc bouncer

Change Log

References


[ 1 ] Bug #513152 - ZNC: Users data directory traversal flaw via Direct Client Connection message https://bugzilla.redhat.com/show_bug.cgi?id=513152

Update Instructions

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 .

Severity
critical
Lowest
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Critical

Name: znc
Product: Fedora 11
Version: 0.072
Release: 3.fc11
URL: Summary : An advanced IRC bouncer

Topics%20covered

Topics Covered

security advisory fedora critical file overwrite data traversal irc bouncer

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