CVE catalog

CVE-2006-1168

ncompress: CVE-2006-1168

Severity: Medium
Published: Aug 10, 2006, 12:00:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 5.82% · Oct 25, 2026

The decompress function in compress42.c in (1) ncompress 4.2.4 and (2) liblzw allows remote attackers to cause a denial of service (crash), and possibly execute arbitrary code, via crafted data that leads to a buffer underflow.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	ncompress	sid	`5.0-5`	fixed
Debian	ncompress	forky	`5.0-5`	fixed
Debian	ncompress	trixie	`5.0-3`	fixed
Debian	ncompress	bookworm	`4.2.4.6-6`	fixed
Opensuse	ncompress	tumbleweed	`4.2.4.4-1.1`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	ncompress	source	sid	`4.2.4-16`	not yet assigned	Not reported	Not reported
Debian	ncompress	source	forky	`4.2.4-16`	not yet assigned	Not reported	Not reported
Debian	ncompress	source	trixie	`4.2.4-16`	not yet assigned	Not reported	Not reported
Debian	ncompress	source	bookworm	`4.2.4-16`	not yet assigned	Not reported	Not reported
Opensuse	ncompress	rpm	tumbleweed	`4.2.4.4-1.1`	Not reported	OPENSUSE-SU-2024:10385-1	Not reported

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[ncompress]Fixed
Details (2)
- 4.2.4.6-6 · amd64 · bookworm
  Fixed · Fixed: 4.2.4-16
  dsa · ncompress · debian · bookworm; dsa · ncompress · debian · 12
- 4.2.4.6-6 · arm64 · bookworm
  Fixed · Fixed: 4.2.4-16
  dsa · ncompress · debian · bookworm; dsa · ncompress · debian · 12

[Debian 13 (Trixie)]

[ncompress]Fixed
Details (2)
- 5.0-3 · amd64 · trixie
  Fixed · Fixed: 4.2.4-16
  dsa · ncompress · debian · 13
- 5.0-3 · arm64 · trixie
  Fixed · Fixed: 4.2.4-16
  dsa · ncompress · debian · 13

[openSUSE Tumbleweed]

[ncompress]Fixed
Source package: [ncompress]
Details (1)
- 5.0-3.5 · x86_64 · tumbleweed
  Fixed · Fixed: 4.2.4.4-1.1
  dsa · ncompress · opensuse · tumbleweed

Observed: Oct 23, 2026, 5:02:53 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]