Vulnerability Description
The STARTTLS implementation in Postfix 2.4.x before 2.4.16, 2.5.x before 2.5.12, 2.6.x before 2.6.9, and 2.7.x before 2.7.3 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Postfix | Postfix | 2.4 |
Related Weaknesses (CWE)
References
- http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10705
- http://lists.apple.com/archives/Security-announce/2011//Oct/msg00003.html
- http://lists.fedoraproject.org/pipermail/package-announce/2011-March/056559.html
- http://lists.fedoraproject.org/pipermail/package-announce/2011-March/056560.html
- http://lists.opensuse.org/opensuse-security-announce/2011-05/msg00005.html
- http://secunia.com/advisories/43646Vendor Advisory
- http://secunia.com/advisories/43874
- http://security.gentoo.org/glsa/glsa-201206-33.xml
- http://securitytracker.com/id?1025179
- http://support.apple.com/kb/HT5002
- http://www.debian.org/security/2011/dsa-2233
- http://www.kb.cert.org/vuls/id/555316US Government Resource
- http://www.kb.cert.org/vuls/id/MORO-8ELH6ZUS Government Resource
- http://www.openwall.com/lists/oss-security/2021/08/10/2
- http://www.oracle.com/technetwork/topics/security/cpuapr2011-301950.html
FAQ
What is CVE-2011-0411?
CVE-2011-0411 is a vulnerability with a CVSS score of 6.8 (MEDIUM). The STARTTLS implementation in Postfix 2.4.x before 2.4.16, 2.5.x before 2.5.12, 2.6.x before 2.6.9, and 2.7.x before 2.7.3 does not properly restrict I/O buffering, which allows man-in-the-middle att...
How severe is CVE-2011-0411?
CVE-2011-0411 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-2011-0411?
Check the references section above for vendor advisories and patch information. Affected products include: Postfix Postfix.