Gentoo Forums
Gentoo Forums
Gentoo Forums
Quick Search: in
[ GLSA 200608-12 ] x11vnc: Authentication bypass in included LibVNCServer code
View unanswered posts
View posts from last 24 hours

 
Reply to topic    Gentoo Forums Forum Index News & Announcements
View previous topic :: View next topic  
Author Message
GLSA
Veteran
Veteran


Joined: 12 May 2004
Posts: 1613

PostPosted: Mon Aug 07, 2006 6:26 pm    Post subject: [ GLSA 200608-12 ] x11vnc: Authentication bypass in included Reply with quote

Gentoo Linux Security Advisory

Title: x11vnc: Authentication bypass in included LibVNCServer code (GLSA 200608-12)
Severity: high
Exploitable: remote
Date: August 07, 2006
Bug(s): #142559
ID: 200608-12

Synopsis


VNC servers created with x11vnc accept insecure protocol types, even when
the server does not offer it, resulting in the possibility of unauthorized
access to the server.


Background


x11vnc provides VNC servers for X displays.


Affected Packages

Package: x11-misc/x11vnc
Vulnerable: < 0.8.1
Unaffected: >= 0.8.1
Architectures: All supported architectures


Description


x11vnc includes vulnerable LibVNCServer code, which fails to properly
validate protocol types effectively letting users decide what protocol
to use, such as "Type 1 - None" (GLSA-200608-05). x11vnc will accept
this security type, even if it is not offered by the server.


Impact


An attacker could exploit this vulnerability to gain unauthorized
access with the privileges of the user running the VNC server.


Workaround


There is no known workaround at this time.


Resolution


All x11vnc users should upgrade to the latest version:
Code:
# emerge --sync
    # emerge --ask --oneshot --verbose ">=x11-misc/x11vnc-0.8.1"


References

CVE-2006-2450
GLSA-200608-05


Last edited by GLSA on Mon Jun 10, 2013 4:23 am; edited 1 time in total
Back to top
View user's profile Send private message
Display posts from previous:   
Reply to topic    Gentoo Forums Forum Index News & Announcements All times are GMT
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum