National Cyber Awareness System

Vulnerability Summary for CVE-2011-1926

Overview

The STARTTLS implementation in Cyrus IMAP Server before 2.4.7 does not properly restrict I/O buffering, which allows man-in-the-middle attackers to insert commands into encrypted 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.

Impact

CVSS Severity (version 2.0):

CVSS Version 2 Metrics:

References to Advisories, Solutions, and Tools

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US-CERT Vulnerability Note: VU#555316

Name: VU#555316

Hyperlink:http://www.kb.cert.org/vuls/id/555316

External Source: CONFIRM

Name: https://bugzilla.redhat.com/show_bug.cgi?id=705288

Type: Patch Information

Hyperlink:https://bugzilla.redhat.com/show_bug.cgi?id=705288

External Source: MLIST

Name: [oss-security] 20110517 CVE Request -- Cyrus-IMAP STARTTLS issue -- [was: Re: pure-ftpd STARTTLS command injection / new CVE?]

Type: Patch Information

Hyperlink:http://openwall.com/lists/oss-security/2011/05/17/2

External Source: MLIST

Name: [oss-security] 20110517 Re: CVE Request -- Cyrus-IMAP STARTTLS issue -- [was: Re: pure-ftpd STARTTLS command injection / new CVE?]

Type: Patch Information

Hyperlink:http://openwall.com/lists/oss-security/2011/05/17/15

External Source: CONFIRM

Name: http://git.cyrusimap.org/cyrus-imapd/patch/?id=523a91a5e86c8b9a27a138f04a3e3f2d8786f162

Type: Patch Information

Hyperlink:http://git.cyrusimap.org/cyrus-imapd/patch/?id=523a91a5e86c8b9a27a138f04a3e3f2d8786f162

External Source: CONFIRM

Name: http://bugzilla.cyrusimap.org/show_bug.cgi?id=3424

Type: Patch Information

Hyperlink:http://bugzilla.cyrusimap.org/show_bug.cgi?id=3424

External Source: CONFIRM

Name: http://bugzilla.cyrusimap.org/show_bug.cgi?id=3423

Type: Patch Information

Hyperlink:http://bugzilla.cyrusimap.org/show_bug.cgi?id=3423

External Source: XF

Name: cyrus-starttls-command-exec(67867)

Hyperlink:http://xforce.iss.net/xforce/xfdb/67867

External Source: SECTRACK

Name: 1025625

Hyperlink:http://www.securitytracker.com/id?1025625

External Source: REDHAT

Name: RHSA-2011:0859

Hyperlink:http://www.redhat.com/support/errata/RHSA-2011-0859.html

External Source: MANDRIVA

Name: MDVSA-2011:100

Hyperlink:http://www.mandriva.com/security/advisories?name=MDVSA-2011:100

External Source: DEBIAN

Name: DSA-2258

Hyperlink:http://www.debian.org/security/2011/dsa-2258

External Source: DEBIAN

Name: DSA-2242

Hyperlink:http://www.debian.org/security/2011/dsa-2242

External Source: CONFIRM

Name: http://www.cyrusimap.org/docs/cyrus-imapd/2.4.7/changes.php

Hyperlink:http://www.cyrusimap.org/docs/cyrus-imapd/2.4.7/changes.php

External Source: SECUNIA

Name: 44928

Hyperlink:http://secunia.com/advisories/44928

External Source: SECUNIA

Name: 44913

Hyperlink:http://secunia.com/advisories/44913

External Source: SECUNIA

Name: 44876

Hyperlink:http://secunia.com/advisories/44876

External Source: SECUNIA

Name: 44670

Hyperlink:http://secunia.com/advisories/44670

External Source: FEDORA

Name: FEDORA-2011-7193

Hyperlink:http://lists.fedoraproject.org/pipermail/package-announce/2011-June/061415.html

External Source: FEDORA

Name: FEDORA-2011-7217

Hyperlink:http://lists.fedoraproject.org/pipermail/package-announce/2011-June/061374.html