fetchmail up to 5.9.8 input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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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.
4.8$0-$5k0.00

A vulnerability, which was classified as problematic, was found in fetchmail up to 5.9.8. This affects an unknown code block. 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. The summary by CVE is:

fetchmail 6.3.8 and earlier, when running in -v -v (aka verbose) mode, allows remote attackers to cause a denial of service (crash and persistent mail failure) via a malformed mail message with long headers, which triggers an erroneous dereference when using vsnprintf to format log messages.

The bug was discovered 06/13/2008. The weakness was shared 06/16/2008 by Matthias Andree (Website). The advisory is shared at redhat.com. This vulnerability is uniquely identified as CVE-2008-2711 since 06/16/2008. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available.

It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 3 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 33746 (Slackware 10.0 / 10.1 / 10.2 / 11.0 / 12.0 / 12.1 / 8.1 / 9.0 / 9.1 / current : fetchmail (SSA:2008-210-01)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Slackware Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 116215 (Apple Mac OS X Security Update 2009-001 Not Installed (APPLE-SA-2009-02-12)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 2 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (43121) and Tenable (33746). The entries 3868, 3872, 38543 and 42109 are related to this item.

Productinfo

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Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Input validation
CWE: CWE-20
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

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EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 33746
Nessus Name: Slackware 10.0 / 10.1 / 10.2 / 11.0 / 12.0 / 12.1 / 8.1 / 9.0 / 9.1 / current : fetchmail (SSA:2008-210-01)
Nessus File: 🔍
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OpenVAS ID: 61477
OpenVAS Name: Slackware Advisory SSA:2008-210-01 fetchmail
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
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Timelineinfo

06/13/2008 🔍
06/13/2008 +0 days 🔍
06/13/2008 +0 days 🔍
06/16/2008 +3 days 🔍
06/16/2008 +0 days 🔍
06/16/2008 +0 days 🔍
06/17/2008 +1 days 🔍
06/29/2008 +12 days 🔍
07/29/2008 +30 days 🔍
07/29/2008 +0 days 🔍
03/16/2015 +2421 days 🔍
08/12/2019 +1610 days 🔍

Sourcesinfo

Advisory: redhat.com
Researcher: Matthias Andree
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2008-2711 (🔍)
OVAL: 🔍

X-Force: 43121
SecurityTracker: 1020298
Vulnerability Center: 18704 - FetchMail Vulnerability Allows Remote Attackers to Cause DoS via Crafted Mail Message, Medium
SecurityFocus: 29705 - Fetchmail Verbose Mode Large Log Messages Remote Denial of Service Vulnerability
Secunia: 30742
OSVDB: 46304 - CVE-2008-2711 - Fetchmail - Denial of Service Issue
Vupen: ADV-2008-1860

See also: 🔍

Entryinfo

Created: 03/16/2015 17:00
Updated: 08/12/2019 09:37
Changes: 03/16/2015 17:00 (74), 08/12/2019 09:37 (13)
Complete: 🔍

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