Secunia Logo  
 
Fetchmail TLS Configuration Security Issue and "MDA" Denial of Service
Secunia Advisory: SA23631
Release Date: 2007-01-08
Popularity: 8,857 views

Critical:
Less critical
Impact: Exposure of sensitive information
DoS
Where: From local network
Solution Status: Vendor Patch

Software:Fetchmail 6.x

Subscribe: Instant alerts on relevant vulnerabilities

CVE reference:CVE-2006-5867
CVE-2006-5974


Description:
A vulnerability and a security issue have been reported in Fetchmail, which can be exploited by malicious, local users to cause a DoS (Denial of Service) and by malicious people to gain knowledge of sensitive information.

1) A NULL pointer dereference error in Fetchmail, when refusing a message that was bound for delivery by a message delivery agent (MDA) via the "mda" option, can be exploited to crash the service.

2) Several errors could lead to the authentication in plain text despite the configured settings, resulting in the possibility of passwords being eavesdropped.

The vulnerabilities are reported in version 6.3.5.

Solution:
Update to version 6.3.6.

Provided and/or discovered by:
The vendor credits:
1) Neil Hoggarth
2) Isaac Wilcox

Original Advisory:
1) http://fetchmail.berlios.de/fetchmail-SA-2006-03.txt
2) http://fetchmail.berlios.de/fetchmail-SA-2006-02.txt


Track this Secunia Advisory
Customers of the Secunia Vulnerability Intelligence solutions will automatically receive updates when new information regarding this advisory is released.

Read more about our Vulnerability Intelligence solutions and what they can do for you and your company.

About this Secunia Advisory
Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.

Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
  
Latest Advisories

Send Feedback to Secunia
If you have new information regarding this Secunia advisory or a product in our database, please send it to us using either our web form or email us at vuln@secunia.com.

Ideas, suggestions, and other feedback are most welcome.

Most Popular - 3 Hours

1. Internet Explorer Data Binding Memory Corruption Vulnerability // 39 views
2. Cisco Global Site Selector DNS Request Denial of Service // 36 views
3. Drupal Project Module File Upload and Cross-Site Scripting // 29 views
4. Sun Java JDK / JRE Multiple Vulnerabilities // 29 views
5. NTP OpenSSL "EVP_VerifyFinal()" Spoofing Vulnerability // 28 views
6. phpBB Avatar Functions Information Disclosure and Deletion // 28 views
7. tnftpd Long Command Processing Vulnerability // 27 views
8. SmbFTPD Long Command Processing Vulnerability // 26 views
9. Drupal Project Issue Tracking Module Multiple Vulnerabilities // 25 views
10. Red Hat update for openssl // 24 views