[ GLSA 201405-03 ] WeeChat: Multiple vulnerabilities

[GLSA]

Gentoo Linux Security Advisory

Title: WeeChat: Multiple vulnerabilities (GLSA 201405-03)
Severity: normal
Exploitable: remote
Date: May 03, 2014
Bug(s): #442600
ID: 201405-03

Synopsis

Two vulnerabilities have been found in WeeChat, the worst of which
may allow execution of arbitrary code.


Background

Wee Enhanced Environment for Chat (WeeChat) is a light and extensible
console IRC client.


Affected Packages

Package: net-irc/weechat
Vulnerable: < 0.3.9.2
Unaffected: >= 0.3.9.2
Architectures: All supported architectures


Description

Two vulnerabilities have been discovered in WeeChat:

• The hook_process() function does not properly handle shell expansions
  (CVE-2012-5534).
  
• WeeChat does not properly decode colors which could cause a
  heap-based buffer overflow (CVE-2012-5854).
  

Impact

A remote attacker could entice a user to open a specially crafted script
or send messages with specially crafted colors, possibly resulting in
execution of arbitrary code with the privileges of the process, or a
Denial of Service condition.


Workaround

There is no known workaround at this time.

Resolution

All WeeChat users should upgrade to the latest version: