Description
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.
References (4)
Core 4
Core References
Issue Tracking, Patch, Third Party Advisory x_refsource_confirm
https://github.com/cyrusimap/cyrus-imapd/commit/6bd33275368edfa71ae117de895488584678ac79
Third Party Advisory x_refsource_confirm
https://lists.andrew.cmu.edu/pipermail/cyrus-announce/2017-September/000145.html
Release Notes, Third Party Advisory x_refsource_confirm
https://www.cyrusimap.org/imap/download/release-notes/3.0/x/3.0.4.html
Issue Tracking, Third Party Advisory x_refsource_confirm
https://github.com/cyrusimap/cyrus-imapd/issues/2132
Scores
CVSS v3
9.1
EPSS
0.0088
EPSS Percentile
75.4%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Details
CWE
CWE-20
Status
published
Products (1)
cyrus/imap
< 3.0.3
Published
Sep 10, 2017
Tracked Since
Feb 18, 2026