Matt Blaze Cryptographic File System up to 1.4.0 cfs_fh.c integer coercion

CVSS Meta Temp Score
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CTI Interest Score
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3.6$0-$5k0.00

Summaryinfo

A vulnerability was found in Matt Blaze Cryptographic File System up to 1.4.0. It has been declared as problematic. This affects an unknown part of the file cfs_fh.c of the component File System. Executing a manipulation can lead to integer coercion. This vulnerability is registered as CVE-2006-3123. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Matt Blaze Cryptographic File System up to 1.4.0. It has been declared as problematic. This vulnerability affects some unknown processing of the file cfs_fh.c of the component File System. The manipulation with an unknown input leads to a integer coercion vulnerability. The CWE definition for the vulnerability is CWE-192. Integer coercion refers to a set of flaws pertaining to the type casting, extension, or truncation of primitive data types. As an impact it is known to affect availability. CVE summarizes:

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.

The bug was discovered 08/04/2006. The weakness was published 08/07/2006 (Website). The advisory is shared for download at debian.org. This vulnerability was named CVE-2006-3123 since 06/21/2006. The exploitation appears to be easy. The attack needs to be approached locally. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available.

It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 22680 (Debian DSA-1138-1 : cfs - integer overflow), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l.

Upgrading to version 1.4.1 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (28288), Tenable (22680), SecurityFocus (BID 19320†), OSVDB (27776†) and Secunia (SA21310†). Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.0
VulDB Meta Temp Score: 3.6

VulDB Base Score: 4.0
VulDB Temp Score: 3.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Integer coercion
CWE: CWE-192 / CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 22680
Nessus Name: Debian DSA-1138-1 : cfs - integer overflow
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 57206
OpenVAS Name: Debian Security Advisory DSA 1138-1 (cfs)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Cryptographic File System 1.4.1

Timelineinfo

06/21/2006 🔍
08/02/2006 +42 days 🔍
08/02/2006 +0 days 🔍
08/02/2006 +0 days 🔍
08/04/2006 +2 days 🔍
08/04/2006 +0 days 🔍
08/07/2006 +3 days 🔍
08/07/2006 +0 days 🔍
10/14/2006 +68 days 🔍
06/27/2007 +256 days 🔍
03/12/2015 +2815 days 🔍
07/21/2019 +1592 days 🔍

Sourcesinfo

Advisory: debian.org
Status: Not defined
Confirmation: 🔍

CVE: CVE-2006-3123 (🔍)
GCVE (CVE): GCVE-0-2006-3123
GCVE (VulDB): GCVE-100-31660
X-Force: 28288
SecurityFocus: 19320 - Cryptographic Filesystem Daemon Local Denial Of Service Vulnerability
Secunia: 21310
OSVDB: 27776 - Cryptographic Filesystem Daemon - Local Denial Of Service Issue
Vulnerability Center: 15466 - Matt Blaze CFS Integer Overflow Allows Local Users to Cause DoS, Low
Vupen: ADV-2006-3157

Entryinfo

Created: 03/12/2015 15:51
Updated: 07/21/2019 06:56
Changes: 03/12/2015 15:51 (76), 07/21/2019 06:56 (4)
Complete: 🔍
Cache ID: 216::103

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