fetchmail 6.3.5/6.3.6 input validation

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.7$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in fetchmail 6.3.5/6.3.6. The affected element is an unknown function. The manipulation results in input validation. This vulnerability was named CVE-2006-5974. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as critical has been found in fetchmail 6.3.5/6.3.6. Affected is an unknown part. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on availability. CVE summarizes:

fetchmail 6.3.5 and 6.3.6 before 6.3.6-rc4, when refusing a message delivered via the mda option, allows remote attackers to cause a denial of service (crash) via unknown vectors that trigger a NULL pointer dereference when calling the (1) ferror or (2) fflush functions.

The bug was discovered 01/04/2007. The weakness was presented 01/04/2007 by Matthias Andree (Website). The advisory is shared for download at fedoranews.org. This vulnerability is traded as CVE-2006-5974 since 11/20/2006. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available.

It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 23985 (FreeBSD : fetchmail -- crashes when refusing a message bound for an MDA (37e30313-9d8c-11db-858b-0060084a00e5)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks and running in the context l.

Upgrading to version 6.3.5 eliminates this vulnerability. A possible mitigation has been published 2 days after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (31414), Tenable (23985), SecurityFocus (BID 21902†), OSVDB (31836†) and Secunia (SA23631†). See VDB-2802 for similar entry. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 6.7

VulDB Base Score: 7.5
VulDB Temp Score: 6.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 23985
Nessus Name: FreeBSD : fetchmail -- crashes when refusing a message bound for an MDA (37e30313-9d8c-11db-858b-0060084a00e5)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 57835
OpenVAS Name: Slackware Advisory SSA:2007-024-01 fetchmail
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
Exposure Time: 🔍

Upgrade: fetchmail 6.3.5

Timelineinfo

11/20/2006 🔍
12/31/2006 +41 days 🔍
12/31/2006 +0 days 🔍
01/04/2007 +4 days 🔍
01/04/2007 +0 days 🔍
01/06/2007 +2 days 🔍
01/06/2007 +0 days 🔍
01/08/2007 +2 days 🔍
01/08/2007 +0 days 🔍
01/08/2007 +0 days 🔍
01/14/2007 +6 days 🔍
01/16/2007 +2 days 🔍
03/12/2015 +2976 days 🔍
07/13/2019 +1584 days 🔍

Sourcesinfo

Advisory: fedoranews.org
Researcher: Matthias Andree
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2006-5974 (🔍)
GCVE (CVE): GCVE-0-2006-5974
GCVE (VulDB): GCVE-100-34128
X-Force: 31414
SecurityFocus: 21902 - Fetchmail Remote Denial of Service Vulnerability
Secunia: 23631 - Fetchmail TLS Configuration Security Issue and "MDA" Denial of Service, Less Critical
OSVDB: 31836 - Fetchmail mda Message Refusal DoS
SecurityTracker: 1017479
Vulnerability Center: 14018 - Fetchmail 6.3.5, 6.3.6 Remote Denial of Service When Refusing a Message via the MDA Option, High
Vupen: ADV-2007-0087

See also: 🔍

Entryinfo

Created: 03/12/2015 22:21
Updated: 07/13/2019 16:46
Changes: 03/12/2015 22:21 (78), 07/13/2019 16:46 (10)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Might our Artificial Intelligence support you?

Check our Alexa App!