vulnerability

Amazon Linux AMI 2: CVE-2023-50387: Security patch for bind, dnsmasq, unbound (Multiple Advisories)

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Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Published
2024-02-14
Added
2024-03-05
Modified
2025-03-27

Description

Certain DNSSEC aspects of the DNS protocol (in RFC 4033, 4034, 4035, 6840, and related RFCs) allow remote attackers to cause a denial of service (CPU consumption) via one or more DNSSEC responses, aka the "KeyTrap" issue. One of the concerns is that, when there is a zone with many DNSKEY and RRSIG records, the protocol specification implies that an algorithm must evaluate all combinations of DNSKEY and RRSIG records.

Solution(s)

amazon-linux-ami-2-upgrade-bindamazon-linux-ami-2-upgrade-bind-chrootamazon-linux-ami-2-upgrade-bind-debuginfoamazon-linux-ami-2-upgrade-bind-develamazon-linux-ami-2-upgrade-bind-export-develamazon-linux-ami-2-upgrade-bind-export-libsamazon-linux-ami-2-upgrade-bind-libsamazon-linux-ami-2-upgrade-bind-libs-liteamazon-linux-ami-2-upgrade-bind-licenseamazon-linux-ami-2-upgrade-bind-lite-develamazon-linux-ami-2-upgrade-bind-pkcs11amazon-linux-ami-2-upgrade-bind-pkcs11-develamazon-linux-ami-2-upgrade-bind-pkcs11-libsamazon-linux-ami-2-upgrade-bind-pkcs11-utilsamazon-linux-ami-2-upgrade-bind-sdbamazon-linux-ami-2-upgrade-bind-sdb-chrootamazon-linux-ami-2-upgrade-bind-utilsamazon-linux-ami-2-upgrade-dnsmasqamazon-linux-ami-2-upgrade-dnsmasq-debuginfoamazon-linux-ami-2-upgrade-dnsmasq-utilsamazon-linux-ami-2-upgrade-python2-unboundamazon-linux-ami-2-upgrade-python3-unboundamazon-linux-ami-2-upgrade-unboundamazon-linux-ami-2-upgrade-unbound-anchoramazon-linux-ami-2-upgrade-unbound-debuginfoamazon-linux-ami-2-upgrade-unbound-develamazon-linux-ami-2-upgrade-unbound-libsamazon-linux-ami-2-upgrade-unbound-utils

References

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