Debian DSA-556-2 : netkit-telnet - invalid free(3)

medium Nessus Plugin ID 15654

Synopsis

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

Description

Michal Zalewski discovered a bug in the netkit-telnet server (telnetd) whereby a remote attacker could cause the telnetd process to free an invalid pointer. This causes the telnet server process to crash, leading to a straightforward denial of service (inetd will disable the service if telnetd is crashed repeatedly), or possibly the execution of arbitrary code with the privileges of the telnetd process (by default, the 'telnetd' user).

Solution

Upgrade the netkit-telnet package.

For the stable distribution (woody) this problem has been fixed in version 0.17-18woody2.

Plugin Details

Severity: Medium

ID: 15654

File Name: debian_DSA-556.nasl

Version: 1.19

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 11/10/2004

Updated: 1/4/2021

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

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

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

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:3.0, p-cpe:/a:debian:debian_linux:netkit-telnet

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

Patch Publication Date: 10/18/2004

Vulnerability Publication Date: 10/6/2004

Reference Information

CVE: CVE-2004-0911

DSA: 556

Detections

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