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[ GLSA 201405-03 ] WeeChat: Multiple vulnerabilities
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PostPosted: Sat May 03, 2014 3:26 pm    Post subject: [ GLSA 201405-03 ] WeeChat: Multiple vulnerabilities Reply with quote

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:
Code:
# emerge --sync
      # emerge --ask --oneshot --verbose ">=net-irc/weechat-0.3.9.2"
   


References

CVE-2012-5534
CVE-2012-5854
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