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Alma Linux: CVE-2023-50387: Important: bind9.16 security update (Multiple Advisories)

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Alma Linux: CVE-2023-50387: Important: bind9.16 security update (Multiple Advisories)

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Published
02/14/2024
Created
03/01/2024
Added
02/29/2024
Modified
02/13/2025

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)

  • alma-upgrade-bind
  • alma-upgrade-bind-chroot
  • alma-upgrade-bind-devel
  • alma-upgrade-bind-dnssec-doc
  • alma-upgrade-bind-dnssec-utils
  • alma-upgrade-bind-doc
  • alma-upgrade-bind-dyndb-ldap
  • alma-upgrade-bind-export-devel
  • alma-upgrade-bind-export-libs
  • alma-upgrade-bind-libs
  • alma-upgrade-bind-libs-lite
  • alma-upgrade-bind-license
  • alma-upgrade-bind-lite-devel
  • alma-upgrade-bind-pkcs11
  • alma-upgrade-bind-pkcs11-devel
  • alma-upgrade-bind-pkcs11-libs
  • alma-upgrade-bind-pkcs11-utils
  • alma-upgrade-bind-sdb
  • alma-upgrade-bind-sdb-chroot
  • alma-upgrade-bind-utils
  • alma-upgrade-bind9.16
  • alma-upgrade-bind9.16-chroot
  • alma-upgrade-bind9.16-devel
  • alma-upgrade-bind9.16-dnssec-utils
  • alma-upgrade-bind9.16-doc
  • alma-upgrade-bind9.16-libs
  • alma-upgrade-bind9.16-license
  • alma-upgrade-bind9.16-utils
  • alma-upgrade-dnsmasq
  • alma-upgrade-dnsmasq-utils
  • alma-upgrade-python3-bind
  • alma-upgrade-python3-bind9.16
  • alma-upgrade-python3-unbound
  • alma-upgrade-unbound
  • alma-upgrade-unbound-devel
  • alma-upgrade-unbound-libs

References

  • https://attackerkb.com/topics/cve-2023-50387
  • CVE - 2023-50387
  • https://errata.almalinux.org/8/ALSA-2024-0965.html
  • https://errata.almalinux.org/8/ALSA-2024-1335.html
  • https://errata.almalinux.org/8/ALSA-2024-1781.html
  • https://errata.almalinux.org/8/ALSA-2024-1782.html
  • https://errata.almalinux.org/8/ALSA-2024-3271.html
  • https://errata.almalinux.org/9/ALSA-2024-0977.html
  • https://errata.almalinux.org/9/ALSA-2024-1334.html
  • https://errata.almalinux.org/9/ALSA-2024-1789.html
  • https://errata.almalinux.org/9/ALSA-2024-2551.html
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