GLSA-200510-15 : Lynx: Buffer overflow in NNTP processing

high Nessus Plugin ID 20035

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-200510-15 (Lynx: Buffer overflow in NNTP processing)

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.
Impact :

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.
Workaround :

There is no known workaround at this time.

Solution

All Lynx users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=www-client/lynx-2.8.5-r1'

See Also

https://security.gentoo.org/glsa/200510-15

Plugin Details

Severity: High

ID: 20035

File Name: gentoo_GLSA-200510-15.nasl

Version: 1.17

Type: local

Published: 10/19/2005

Updated: 1/6/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Vulnerability Information

CPE: p-cpe:/a:gentoo:linux:lynx, cpe:/o:gentoo:linux

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Patch Publication Date: 10/17/2005

Vulnerability Publication Date: 8/20/2005

Reference Information

CVE: CVE-2005-3120

GLSA: 200510-15