CVE-2011-1431
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…
Does this matter?
Lower severity and a low EPSS score (4.59%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 2.0
- 6.8 MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:P
- EPSS
- 4.59% probability · 91th percentile
- CISA KEV
- Not listed
- Affected
- frederik vermeulen/netqmail
- Source
- cve@mitre.org
References
- http://inoa.net/qmail-tls/vu555316.patchPatch
- http://securityreason.com/securityalert/8144
- http://www.kb.cert.org/vuls/id/555316US Government Resource
- http://www.kb.cert.org/vuls/id/MAPG-8D9M5QUS Government Resource
- http://www.postfix.org/CVE-2011-0411.htmlExploit, Vendor Advisory
- http://www.securityfocus.com/archive/1/516901Exploit
- http://www.securityfocus.com/bid/46767
- http://www.vupen.com/english/advisories/2011/0612Vendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/65932
- http://inoa.net/qmail-tls/vu555316.patchPatch
- http://securityreason.com/securityalert/8144
- http://www.kb.cert.org/vuls/id/555316US Government Resource
- http://www.kb.cert.org/vuls/id/MAPG-8D9M5QUS Government Resource
- http://www.postfix.org/CVE-2011-0411.htmlExploit, Vendor Advisory
- http://www.securityfocus.com/archive/1/516901Exploit
- http://www.securityfocus.com/bid/46767
- http://www.vupen.com/english/advisories/2011/0612Vendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/65932
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.