SB2011031703 - Input validation error in qmail netqmail 

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Main Vulnerability Database SB2011031703

SB2011031703 - Input validation error in qmail netqmail

Published: March 17, 2011 Updated: August 11, 2020

Security Bulletin ID SB2011031703
Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Input validation error (CVE-ID: CVE-2011-1431)

The vulnerability allows a remote non-authenticated attacker to read and manipulate data.

The STARTTLS implementation in qmail-smtpd.c in qmail-smtpd in the netqmail-1.06-tls patch for netqmail 1.06 does not properly restrict I/O buffering, which allows man-in-the-middle attackers to insert commands into encrypted SMTP sessions by sending a cleartext command that is processed after TLS is in place, related to a "plaintext command injection" attack, a similar issue to CVE-2011-0411. Per: http://cwe.mitre.org/data/definitions/77.html Improper Neutralization of Special Elements used in a Command ('Command Injection')


Remediation

Install update from vendor's website.

References