VULNERABILITY INTELLIGENCE
CVE-2011-1720
CVSS score6.8 MEDIUM
EPSS probability21.48%
CISA KEVNot currently listed
Published2011-05-13
Last modified2026-06-16
CVSS vectorAV:N/AC:M/Au:N/C:P/I:P/A:P
Description
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.
Weakness classification
- CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
Primary references
- cve@mitre.org
- cve@mitre.org
- cve@mitre.org — Vendor Advisory
- cve@mitre.org
- cve@mitre.org
- cve@mitre.org
- cve@mitre.org — US Government Resource
- cve@mitre.org
- cve@mitre.org
- cve@mitre.org
- cve@mitre.org — Vendor Advisory
- cve@mitre.org — Vendor Advisory