Vulnerability Monitor

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CVE-2017-14230

In the mboxlist_do_find function in imap/mboxlist.c in Cyrus IMAP before 3.0.4, an off-by-one error in prefix calculation for the LIST command caused use of uninitialized memory, which might allow remote attackers to obtain sensitive information or cause a denial of service (daemon crash) via a 'LIST "" "Other Users"' command.

Security Impact Summary

This vulnerability carries a CRITICAL severity rating with a CVSS v3.1 score of 9.1, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts confidentiality (data exposure), and availability (service disruption) for affected systems. Impacting 1 product from cyrus organizations running these solutions should prioritize assessment and patching.

Historical Context

First disclosed in 2017, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.

Published

2017-09-10T07:29:00.177

Last Modified

2025-04-20T01:37:25.860

Status

Deferred

Source

[email protected]

Severity

CVSSv3.0: 9.1 (CRITICAL)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:N/A:P

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: NONE
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

4.9

Weaknesses

Type: Primary
CWE-20

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	cyrus	imap	≤ 3.0.3	Yes

References

https://github.com/cyrusimap/cyrus-imapd/commit/6bd33275368edfa71ae117de895488584678ac79 Issue Tracking, Patch, Third Party Advisory ([email protected])
https://github.com/cyrusimap/cyrus-imapd/issues/2132 Issue Tracking, Third Party Advisory ([email protected])
https://lists.andrew.cmu.edu/pipermail/cyrus-announce/2017-September/000145.html Third Party Advisory ([email protected])
https://www.cyrusimap.org/imap/download/release-notes/3.0/x/3.0.4.html Release Notes, Third Party Advisory ([email protected])
https://github.com/cyrusimap/cyrus-imapd/commit/6bd33275368edfa71ae117de895488584678ac79 Issue Tracking, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/cyrusimap/cyrus-imapd/issues/2132 Issue Tracking, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.andrew.cmu.edu/pipermail/cyrus-announce/2017-September/000145.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.cyrusimap.org/imap/download/release-notes/3.0/x/3.0.4.html Release Notes, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For cyrus's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.