Debian DSA-070-1 : netkit-telnet - remote exploit

critical Nessus Plugin ID 14907

Synopsis

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

Description

The netkit-telnet daemon contained in the telnetd package version 0.16-4potato1, which is shipped with the 'stable' (2.2, potato) distribution of Debian GNU/Linux, is vulnerable to an exploitable overflow in its output handling.

The original bug was found by <[email protected]>, and announced to bugtraq on Jul 18 2001. At that time, netkit-telnet versions after 0.14 were not believed to be vulnerable.

On Aug 10 2001, zen-parse posted an advisory based on the same problem, for all netkit-telnet versions below 0.17.

More details can be found on http://online.securityfocus.com/archive/1/203000. As Debian uses the `telnetd' user to run in.telnetd, this is not a remote root compromise on Debian systems; however, the user `telnetd' can be compromised.

We strongly advise you update your telnetd package to the versions listed below.

Solution

Upgrade the affected netkit-telnet package.

See Also

http://online.securityfocus.com/archive/1/203000

http://www.debian.org/security/2001/dsa-070

Plugin Details

Severity: Critical

ID: 14907

File Name: debian_DSA-070.nasl

Version: 1.22

Type: local

Agent: unix

Published: 9/29/2004

Updated: 1/4/2021

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.8

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:netkit-telnet, cpe:/o:debian:debian_linux:2.2

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: 8/10/2001

Vulnerability Publication Date: 7/18/2001

Reference Information

CVE: CVE-2001-0554

BID: 3064

DSA: 070