Amazon Linux 2 Security Advisory: ALAS-2021-1725
Advisory Release Date: 2021-12-08 02:22 Pacific
Advisory Updated Date: 2021-12-09 00:44 Pacific
Severity:
Important
Issue Overview:
A flaw was found in cyrus-imapd. A bad string hashing algorithm used in internal hash tables allows user inputs to be stored in predictable buckets. A user may cause a CPU denial of service by maliciously directing many inputs to a single bucket. The highest threat from this vulnerability is to system availability. (CVE-2021-33582)
Affected Packages:
cyrus-imapd
Note:
This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.
Issue Correction:
Run yum update cyrus-imapd to update your system.
New Packages:
aarch64:
cyrus-imapd-2.4.22-1.amzn2.0.1.aarch64
cyrus-imapd-devel-2.4.22-1.amzn2.0.1.aarch64
cyrus-imapd-utils-2.4.22-1.amzn2.0.1.aarch64
cyrus-imapd-debuginfo-2.4.22-1.amzn2.0.1.aarch64
i686:
cyrus-imapd-2.4.22-1.amzn2.0.1.i686
cyrus-imapd-devel-2.4.22-1.amzn2.0.1.i686
cyrus-imapd-utils-2.4.22-1.amzn2.0.1.i686
cyrus-imapd-debuginfo-2.4.22-1.amzn2.0.1.i686
src:
cyrus-imapd-2.4.22-1.amzn2.0.1.src
x86_64:
cyrus-imapd-2.4.22-1.amzn2.0.1.x86_64
cyrus-imapd-devel-2.4.22-1.amzn2.0.1.x86_64
cyrus-imapd-utils-2.4.22-1.amzn2.0.1.x86_64
cyrus-imapd-debuginfo-2.4.22-1.amzn2.0.1.x86_64