vulnerability

Amazon Linux 2023: CVE-2023-4408: Important priority package update for bind

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Published
02/13/2024
Added
02/17/2025
Modified
02/17/2025

Description

The DNS message parsing code in `named` includes a section whose computational complexity is overly high. It does not cause problems for typical DNS traffic, but crafted queries and responses may cause excessive CPU load on the affected `named` instance by exploiting this flaw. This issue affects both authoritative servers and recursive resolvers.
This issue affects BIND 9 versions 9.0.0 through 9.16.45, 9.18.0 through 9.18.21, 9.19.0 through 9.19.19, 9.9.3-S1 through 9.11.37-S1, 9.16.8-S1 through 9.16.45-S1, and 9.18.11-S1 through 9.18.21-S1.
A flaw was found in the bind package. This issue may allow a remote attacker with no specific privileges to craft a specially long DNS message leading to an excessive and uncontrolled CPU usage, the server being unavailable, and a Denial of Service.

Solution(s)

amazon-linux-2023-upgrade-bindamazon-linux-2023-upgrade-bind-chrootamazon-linux-2023-upgrade-bind-debuginfoamazon-linux-2023-upgrade-bind-debugsourceamazon-linux-2023-upgrade-bind-develamazon-linux-2023-upgrade-bind-dlz-filesystemamazon-linux-2023-upgrade-bind-dlz-filesystem-debuginfoamazon-linux-2023-upgrade-bind-dlz-ldapamazon-linux-2023-upgrade-bind-dlz-ldap-debuginfoamazon-linux-2023-upgrade-bind-dlz-mysqlamazon-linux-2023-upgrade-bind-dlz-mysql-debuginfoamazon-linux-2023-upgrade-bind-dlz-sqlite3amazon-linux-2023-upgrade-bind-dlz-sqlite3-debuginfoamazon-linux-2023-upgrade-bind-dnssec-docamazon-linux-2023-upgrade-bind-dnssec-utilsamazon-linux-2023-upgrade-bind-dnssec-utils-debuginfoamazon-linux-2023-upgrade-bind-docamazon-linux-2023-upgrade-bind-libsamazon-linux-2023-upgrade-bind-libs-debuginfoamazon-linux-2023-upgrade-bind-licenseamazon-linux-2023-upgrade-bind-pkcs11amazon-linux-2023-upgrade-bind-pkcs11-debuginfoamazon-linux-2023-upgrade-bind-pkcs11-develamazon-linux-2023-upgrade-bind-pkcs11-libsamazon-linux-2023-upgrade-bind-pkcs11-libs-debuginfoamazon-linux-2023-upgrade-bind-pkcs11-utilsamazon-linux-2023-upgrade-bind-pkcs11-utils-debuginfoamazon-linux-2023-upgrade-bind-utilsamazon-linux-2023-upgrade-bind-utils-debuginfoamazon-linux-2023-upgrade-python3-bind
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