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CVE-2021-33582

Status Candidate

Overview

Cyrus IMAP before 3.4.2 allows remote attackers to cause a denial of service (multiple-minute daemon hang) via input that is mishandled during hash-table interaction. Because there are many insertions into a single bucket, strcmp becomes slow. This is fixed in 3.4.2, 3.2.8, and 3.0.16.

Related Files

Red Hat Security Advisory 2021-3546-01
Posted Sep 15, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-3546-01 - The Cyrus IMAP server provides access to personal mail, system-wide bulletin boards, news-feeds, calendar and contacts through the IMAP, JMAP, NNTP, CalDAV and CardDAV protocols. Issues addressed include a denial of service vulnerability.

tags | advisory, denial of service, imap, protocol
systems | linux, redhat
advisories | CVE-2021-33582
SHA-256 | f906598321e1f6eb52920261111c9632db38f848be1dac81ce1c97c946db901b
Red Hat Security Advisory 2021-3492-01
Posted Sep 13, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-3492-01 - The Cyrus IMAP server provides access to personal mail, system-wide bulletin boards, news-feeds, calendar and contacts through the IMAP, JMAP, NNTP, CalDAV and CardDAV protocols. Issues addressed include a denial of service vulnerability.

tags | advisory, denial of service, imap, protocol
systems | linux, redhat
advisories | CVE-2021-33582
SHA-256 | 43f8d9b01207dfa0d24b4cf764fa6d29dbe280a0e6ebb6265c1f1fdee7b31282
Red Hat Security Advisory 2021-3493-01
Posted Sep 13, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-3493-01 - The Cyrus IMAP server provides access to personal mail, system-wide bulletin boards, news-feeds, calendar and contacts through the IMAP, JMAP, NNTP, CalDAV and CardDAV protocols. Issues addressed include a denial of service vulnerability.

tags | advisory, denial of service, imap, protocol
systems | linux, redhat
advisories | CVE-2021-33582
SHA-256 | df5df5a67956e4c3f6b317fc69d22d4f177a767e0113d518d0c06f4225ab743d
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