Description
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.
Published: 2011-05-23
Score: 5.1 Medium
EPSS: 4.9% Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Debian DSA Debian DSA DSA-2242-1 cyrus-imapd-2.2 security update
Debian DSA Debian DSA DSA-2258-1 kolab-cyrus-imapd security update
EUVD EUVD EUVD-2011-1924 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.
History

No history.

Subscriptions

Cmu Cyrus Imap Server
Redhat Enterprise Linux
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2024-08-06T22:46:00.659Z

Reserved: 2011-05-09T00:00:00.000Z

Link: CVE-2011-1926

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2011-05-23T22:55:01.490

Modified: 2026-04-29T01:13:23.040

Link: CVE-2011-1926

cve-icon Redhat

Severity : Moderate

Publid Date: 2011-03-25T00:00:00Z

Links: CVE-2011-1926 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses