UBUNTU-CVE-2014-3556

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Source
https://ubuntu.com/security/CVE-2014-3556
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2014/UBUNTU-CVE-2014-3556.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2014-3556
Upstream
Withdrawn
2025-07-18T16:43:02Z
Published
2014-12-29T20:59:00Z
Modified
2025-07-16T07:31:57.462891Z
Severity
  • Ubuntu - medium
Summary
[none]
Details

The STARTTLS implementation in mail/ngxmailsmtp_handler.c in the SMTP proxy in nginx 1.5.x and 1.6.x before 1.6.1 and 1.7.x before 1.7.4 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.

References

Affected packages

Ubuntu:14.04:LTS / nginx

Package

Name
nginx
Purl
pkg:deb/ubuntu/nginx@1.4.6-1ubuntu3?arch=source&distro=trusty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.4.6-1ubuntu3

Affected versions

1.*

1.4.1-3ubuntu1
1.4.3-2ubuntu1
1.4.4-1ubuntu1
1.4.4-2ubuntu1
1.4.4-4ubuntu1
1.4.5-1ubuntu1
1.4.6-1ubuntu2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.4.6-1ubuntu3",
            "binary_name": "nginx"
        },
        {
            "binary_version": "1.4.6-1ubuntu3",
            "binary_name": "nginx-common"
        },
        {
            "binary_version": "1.4.6-1ubuntu3",
            "binary_name": "nginx-core"
        },
        {
            "binary_version": "1.4.6-1ubuntu3",
            "binary_name": "nginx-core-dbg"
        },
        {
            "binary_version": "1.4.6-1ubuntu3",
            "binary_name": "nginx-doc"
        },
        {
            "binary_version": "1.4.6-1ubuntu3",
            "binary_name": "nginx-extras"
        },
        {
            "binary_version": "1.4.6-1ubuntu3",
            "binary_name": "nginx-extras-dbg"
        },
        {
            "binary_version": "1.4.6-1ubuntu3",
            "binary_name": "nginx-full"
        },
        {
            "binary_version": "1.4.6-1ubuntu3",
            "binary_name": "nginx-full-dbg"
        },
        {
            "binary_version": "1.4.6-1ubuntu3",
            "binary_name": "nginx-light"
        },
        {
            "binary_version": "1.4.6-1ubuntu3",
            "binary_name": "nginx-light-dbg"
        },
        {
            "binary_version": "1.4.6-1ubuntu3",
            "binary_name": "nginx-naxsi"
        },
        {
            "binary_version": "1.4.6-1ubuntu3",
            "binary_name": "nginx-naxsi-dbg"
        },
        {
            "binary_version": "1.4.6-1ubuntu3",
            "binary_name": "nginx-naxsi-ui"
        }
    ],
    "availability": "No subscription required"
}