GLSA-200410-13 : BNC: Input validation flaw

This script is Copyright (C) 2004-2014 Tenable Network Security, Inc.


Synopsis :

The remote Gentoo host is missing one or more security-related
patches.

Description :

The remote host is affected by the vulnerability described in GLSA-200410-13
(BNC: Input validation flaw)

A flaw exists in the input parsing of BNC where part of the
sbuf_getmsg() function handles the backspace character incorrectly.

Impact :

A remote user could issue commands using fake authentication
credentials and possibly gain access to scripts running on the client
side.

Workaround :

There is no known workaround at this time.

See also :

http://www.gotbnc.com/changes.html#2.8.9
http://www.gentoo.org/security/en/glsa/glsa-200410-13.xml

Solution :

All BNC users should upgrade to the latest version:
# emerge sync
# emerge -pv '>=net-irc/bnc-2.8.9'
# emerge '>=net-irc/bnc-2.8.9'

Risk factor :

High / CVSS Base Score : 7.5
(CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P)

Family: Gentoo Local Security Checks

Nessus Plugin ID: 15476 (gentoo_GLSA-200410-13.nasl)

Bugtraq ID:

CVE ID: CVE-2004-1482