Vulnerability in Postfix
CVE-2011-0411
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.
Published · last modified .
CVSS v2 metric
CVSS v2 base score 6.8 (Medium). Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.163 (96.9th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 97th percentile — 96.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.163 · newest: 0.163 · change: 0.000
Affected products
- Postfix — versions 2.4, 2.4.0, 2.4.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.oracle.com/technetwork/topics/security/cpuapr2011-301950.html
- exchange.xforce.ibmcloud.com/vulnerabilities/65932 (vdb-entry)
- www.postfix.org/CVE-2011-0411.html (Exploit, Vendor Advisory)
- secunia.com/advisories/43646 (Vendor Advisory, third-party-advisory)
- lists.opensuse.org/opensuse-security-announce/2011-05/msg00005.html (vendor-advisory)
- www.osvdb.org/71021 (vdb-entry)
- www.vupen.com/english/advisories/2011/0752 (vdb-entry)
- www.vupen.com/english/advisories/2011/0891 (vdb-entry)
- security.gentoo.org/glsa/glsa-201206-33.xml (vendor-advisory)
- lists.fedoraproject.org/pipermail/package-announce/2011-March/056560.html (vendor-advisory)
Frequently asked questions
- What is CVE-2011-0411?
- CVE-2011-0411 is a vulnerability in Postfix, classified under CWE-264. Published 2011-03-16.
- Is CVE-2011-0411 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.