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Oracle Linux: CVE-2023-50387: ELSA-2024-3271: bind and dhcp security update (IMPORTANT) (Multiple Advisories)

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Oracle Linux: CVE-2023-50387: ELSA-2024-3271: bind and dhcp security update (IMPORTANT) (Multiple Advisories)

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Published
02/13/2024
Created
03/01/2024
Added
02/28/2024
Modified
07/22/2024

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. Processing specially crafted responses coming from DNSSEC-signed zones can lead to uncontrolled CPU usage, leading to a Denial of Service in the DNSSEC-validating resolver side. This vulnerability applies only for systems where DNSSEC validation is enabled.

Solution(s)

  • oracle-linux-upgrade-bind
  • oracle-linux-upgrade-bind9-16
  • oracle-linux-upgrade-bind9-16-chroot
  • oracle-linux-upgrade-bind9-16-devel
  • oracle-linux-upgrade-bind9-16-dnssec-utils
  • oracle-linux-upgrade-bind9-16-doc
  • oracle-linux-upgrade-bind9-16-libs
  • oracle-linux-upgrade-bind9-16-license
  • oracle-linux-upgrade-bind9-16-utils
  • oracle-linux-upgrade-bind-chroot
  • oracle-linux-upgrade-bind-devel
  • oracle-linux-upgrade-bind-dnssec-doc
  • oracle-linux-upgrade-bind-dnssec-utils
  • oracle-linux-upgrade-bind-doc
  • oracle-linux-upgrade-bind-dyndb-ldap
  • oracle-linux-upgrade-bind-export-devel
  • oracle-linux-upgrade-bind-export-libs
  • oracle-linux-upgrade-bind-libs
  • oracle-linux-upgrade-bind-libs-lite
  • oracle-linux-upgrade-bind-license
  • oracle-linux-upgrade-bind-lite-devel
  • oracle-linux-upgrade-bind-pkcs11
  • oracle-linux-upgrade-bind-pkcs11-devel
  • oracle-linux-upgrade-bind-pkcs11-libs
  • oracle-linux-upgrade-bind-pkcs11-utils
  • oracle-linux-upgrade-bind-sdb
  • oracle-linux-upgrade-bind-sdb-chroot
  • oracle-linux-upgrade-bind-utils
  • oracle-linux-upgrade-dhclient
  • oracle-linux-upgrade-dhcp
  • oracle-linux-upgrade-dhcp-client
  • oracle-linux-upgrade-dhcp-common
  • oracle-linux-upgrade-dhcp-devel
  • oracle-linux-upgrade-dhcp-libs
  • oracle-linux-upgrade-dhcp-relay
  • oracle-linux-upgrade-dhcp-server
  • oracle-linux-upgrade-dnsmasq
  • oracle-linux-upgrade-dnsmasq-utils
  • oracle-linux-upgrade-kernel-uek-container
  • oracle-linux-upgrade-python36-debug
  • oracle-linux-upgrade-python3-bind
  • oracle-linux-upgrade-python3-bind9-16
  • oracle-linux-upgrade-python3-unbound
  • oracle-linux-upgrade-rust-debugger-common
  • oracle-linux-upgrade-unbound
  • oracle-linux-upgrade-unbound-devel
  • oracle-linux-upgrade-unbound-libs

References

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