Joined: 12 May 2004
|Posted: Mon Oct 17, 2005 3:31 pm Post subject: [ GLSA 200510-15 ] Lynx: Buffer overflow in NNTP processing
|Gentoo Linux Security Advisory
Title: Lynx: Buffer overflow in NNTP processing (GLSA 200510-15)
Date: October 17, 2005
Lynx contains a buffer overflow that may be exploited to execute arbitrary
Lynx is a text-mode browser for the World Wide Web. It supports
multiple URL types, including HTTP and NNTP URLs.
Vulnerable: < 2.8.5-r1
Unaffected: >= 2.8.5-r1
Architectures: All supported architectures
When accessing a NNTP URL, Lynx connects to a NNTP server and
retrieves information about the available articles in the target
newsgroup. Ulf Harnhammar discovered a buffer overflow in a function
that handles the escaping of special characters.
An attacker could setup a malicious NNTP server and entice a user
to access it using Lynx (either by creating NNTP links on a web page or
by forcing a redirect for Lynx users). The data returned by the NNTP
server would trigger the buffer overflow and execute arbitrary code
with the rights of the user running Lynx.
There is no known workaround at this time.
All Lynx users should upgrade to the latest version:
|# emerge --sync
# emerge --ask --oneshot --verbose ">=www-client/lynx-2.8.5-r1"
Last edited by GLSA on Sun May 01, 2011 4:20 am; edited 3 times in total