SB2011051302 - Buffer overflow in Postfix

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Main Vulnerability Database SB2011051302

SB2011051302 - Buffer overflow in Postfix

Published: May 13, 2011 Updated: August 11, 2020

Security Bulletin ID SB2011051302
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) Buffer overflow (CVE-ID: CVE-2011-1720)

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

The SMTP server in Postfix before 2.5.13, 2.6.x before 2.6.10, 2.7.x before 2.7.4, and 2.8.x before 2.8.3, when certain Cyrus SASL authentication methods are enabled, does not create a new server handle after client authentication fails, which allows remote attackers to cause a denial of service (heap memory corruption and daemon crash) or possibly execute arbitrary code via an invalid AUTH command with one method followed by an AUTH command with a different method.


Remediation

Install update from vendor's website.

References