Detections
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Debian DSA-121-1 : xtell - buffer overflow, symlink problem, '..' directory traversal

high Nessus Plugin ID 14958

Synopsis

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

Description

Several security related problems have been found in the xtell package, a simple messaging client and server. In detail, these problems contain several buffer overflows, a problem in connection with symbolic links, unauthorized directory traversal when the path contains '..'. These problems could lead into an attacker being able to execute arbitrary code on the server machine. The server runs with nobody privileges by default, so this would be the account to be exploited.

They have been corrected by backporting changes from a newer upstream version by the Debian maintainer for xtell. These problems are fixed in version 1.91.1 in the stable distribution of Debian and in version 2.7 for the testing and unstable distribution of Debian.

Solution

Upgrade the xtell packages immediately.

See Also

http://www.debian.org/security/2002/dsa-121

Plugin Details

Severity: High

ID: 14958

File Name: debian_DSA-121.nasl

Version: 1.20

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: 6.3

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:debian:debian_linux:xtell, cpe:/o:debian:debian_linux:2.2

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

Patch Publication Date: 3/11/2002

Vulnerability Publication Date: 2/27/2002

Reference Information

CVE: CVE-2002-0332, CVE-2002-0333, CVE-2002-0334

DSA: 121