Rapid7 Vulnerability & Exploit Database

Amazon Linux AMI 2: CVE-2021-33582: Security patch for cyrus-imapd (ALAS-2021-1725)

Back to Search

Amazon Linux AMI 2: CVE-2021-33582: Security patch for cyrus-imapd (ALAS-2021-1725)

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
Published
09/01/2021
Created
07/16/2022
Added
07/04/2022
Modified
07/14/2022

Description

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.

Solution(s)

  • amazon-linux-ami-2-upgrade-cyrus-imapd
  • amazon-linux-ami-2-upgrade-cyrus-imapd-debuginfo
  • amazon-linux-ami-2-upgrade-cyrus-imapd-devel
  • amazon-linux-ami-2-upgrade-cyrus-imapd-utils

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;