GLSA-200411-07 : Proxytunnel: Format string vulnerability

Critical Nessus Plugin ID 15612


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


The remote host is affected by the vulnerability described in GLSA-200411-07 (Proxytunnel: Format string vulnerability)

Florian Schilhabel of the Gentoo Linux Security Audit project found a format string vulnerability in Proxytunnel. When the program is started in daemon mode (-a [port]), it improperly logs invalid proxy answers to syslog.
Impact :

A malicious remote server could send specially crafted invalid answers to exploit the format string vulnerability, potentially allowing the execution of arbitrary code on the tunnelling host with the rights of the Proxytunnel process.
Workaround :

You can mitigate the issue by only allowing connections to trusted remote servers.


All Proxytunnel users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=net-misc/proxytunnel-1.2.3'

See Also

Plugin Details

Severity: Critical

ID: 15612

File Name: gentoo_GLSA-200411-07.nasl

Version: $Revision: 1.16 $

Type: local

Published: 2004/11/03

Modified: 2015/04/13

Dependencies: 12634

Risk Information

Risk Factor: Critical


Base Score: 10

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

Vulnerability Information

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

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

Patch Publication Date: 2004/11/03

Vulnerability Publication Date: 2004/10/29

Reference Information

CVE: CVE-2004-0992

OSVDB: 11390

GLSA: 200411-07