Detections
Analytics

Debian DSA-2663-1 : tinc - stack based buffer overflow

medium Nessus Plugin ID 66180

Language:

Synopsis

The remote Debian host is missing a security-related update.

Description

Martin Schobert discovered a stack-based vulnerability in tinc, a Virtual Private Network (VPN) daemon.

When packets are forwarded via TCP, packet length is not checked against the stack buffer length. Authenticated peers could use this to crash the tinc daemon and maybe execute arbitrary code.

Note that on Wheezy and Sid, tinc is built using hardening flags and especially stack smashing protection, which should help protect against arbitrary code execution.

Solution

Upgrade the tinc packages.

For the stable distribution (squeeze), this problem has been fixed in version 1.0.13-1+squeeze1.

See Also

https://packages.debian.org/source/squeeze/tinc

https://www.debian.org/security/2013/dsa-2663

Plugin Details

Severity: Medium

ID: 66180

File Name: debian_DSA-2663.nasl

Version: 1.11

Type: local

Agent: unix

Published: 4/23/2013

Updated: 1/11/2021

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.3

CVSS v2

Risk Factor: Medium

Base Score: 6.5

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:tinc, cpe:/o:debian:debian_linux:6.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 4/22/2013

Exploitable With

Metasploit (Tincd Post-Authentication Remote TCP Stack Buffer Overflow)

Reference Information

CVE: CVE-2013-1428

DSA: 2663