Debian DSA-1149-1 : ncompress - buffer underflow

high Nessus Plugin ID 22691


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


Tavis Ormandy from the Google Security Team discovered a missing boundary check in ncompress, the original Lempel-Ziv compress and uncompress programs, which allows a specially crafted datastream to underflow a buffer with attacker controlled data.


Upgrade the ncompress package.

For the stable distribution (sarge) this problem has been fixed in version 4.2.4-15sarge2.

See Also

Plugin Details

Severity: High

ID: 22691

File Name: debian_DSA-1149.nasl

Version: 1.15

Type: local

Agent: unix

Published: 10/14/2006

Updated: 1/4/2021

Supported Sensors: Frictionless Assessment Agent, Nessus Agent

Risk Information


Risk Factor: Medium

Score: 5.5


Risk Factor: High

Base Score: 7.5

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:ncompress, cpe:/o:debian:debian_linux:3.1

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

Patch Publication Date: 8/10/2006

Vulnerability Publication Date: 8/10/2006

Reference Information

CVE: CVE-2006-1168

DSA: 1149