CVE-2006-3123

Multiple integer overflows in the (1) dodecrypt and (2) doencrypt functions in cfs_fh.c in cfsd...

2.1 LowFix available

Multiple integer overflows in the (1) dodecrypt and (2) doencrypt functions in cfs_fh.c in cfsd in Matt Blaze Cryptographic File System (CFS) 1.4.1 before Debian GNU/Linux package 1.4.1-17 allow local users to cause a denial of service (daemon crash) by appending data to a file that is larger than 2 Gb.

Exploit likelihood

0.36%Down 0.7 points since Feb 4, 2022

What each source reports

NVD Score used 2.1

Record: CVE-2006-3123
CVSS 2.0: 2.1 LowAV:L/AC:L/Au:N/C:N/I:N/A:P
Updated: 2026-11-02

CVE List No score

Record: CVE-2006-3123
Updated: 2026-11-02

EUVDEUVD-2006-3120 No score

Record: EUVD-2006-3120
Updated: 2026-11-03

GitHub AdvisoriesGHSA-2pjx-m5vr-xg6f No score

Multiple integer overflows in the (1) dodecrypt and (2) doencrypt functions in cfs_fh.c in cfsd...

Record: GHSA-2pjx-m5vr-xg6f
Updated: 2026-11-02

Affected products

matt blaze cryptographic file system

Affected packages

Affected packages
Package	Affected	Fixed
`cfs` Debian:3.1	before 1.4.1-15sarge1, plus listed versions 1.4.1-15	1.4.1-15sarge1

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2006-3123 is a low vulnerability (CVSS 2.1) in Matt Blaze Cryptographic File System, published August 2, 2006. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.36%, the 30th percentile. Fixed in cfs 1.4.1-15sarge1.