Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Postfix | Postfix | 2.0.0 |
Related Weaknesses (CWE)
References
- http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10705
- http://lists.opensuse.org/opensuse-security-announce/2011-05/msg00002.html
- http://secunia.com/advisories/44500Vendor Advisory
- http://security.gentoo.org/glsa/glsa-201206-33.xml
- http://securityreason.com/securityalert/8247
- http://www.debian.org/security/2011/dsa-2233
- http://www.kb.cert.org/vuls/id/727230US Government Resource
- http://www.mail-archive.com/postfix-announce%40postfix.org/msg00007.html
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:090
- http://www.osvdb.org/72259
- http://www.postfix.org/CVE-2011-1720.htmlVendor Advisory
- http://www.postfix.org/announcements/postfix-2.8.3.htmlVendor Advisory
- http://www.securityfocus.com/archive/1/517917/100/0/threaded
- http://www.securityfocus.com/bid/47778Patch
- http://www.securitytracker.com/id?1025521
FAQ
What is CVE-2011-1720?
CVE-2011-1720 is a vulnerability with a CVSS score of 6.8 (MEDIUM). 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 hand...
How severe is CVE-2011-1720?
CVE-2011-1720 has been rated MEDIUM with a CVSS base score of 6.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2011-1720?
Check the references section above for vendor advisories and patch information. Affected products include: Postfix Postfix.