CVE-2023-50387

CVE Details

Release Date:2024-02-13

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.

See more information about CVE-2023-50387 from MITRE CVE dictionary and NIST NVD


CVSS v3.0 metrics


NOTE: The following CVSS v3.0 metrics and score provided are preliminary and subject to review.

Base Score: 7.5 Base Metrics: AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Access Vector: Network Attack Complexity: Low
Privileges Required: None User Interaction: None
Scope: Unchanged Confidentiality Impact: None
Integrity Impact: None Availability Impact: High

Errata information


PlatformErrataRelease Date
Oracle Linux version 7 (bind)ELSA-2024-37412024-06-10
Oracle Linux version 7 (bind-dyndb-ldap)ELSA-2024-37412024-06-10
Oracle Linux version 7 (dhcp)ELSA-2024-37412024-06-10
Oracle Linux version 8 (bind)ELSA-2024-17822024-04-11
Oracle Linux version 8 (bind)ELSA-2024-32712024-05-29
Oracle Linux version 8 (bind9.16)ELSA-2024-17812024-04-11
Oracle Linux version 8 (dhcp)ELSA-2024-17822024-04-11
Oracle Linux version 8 (dhcp)ELSA-2024-32712024-05-29
Oracle Linux version 8 (dnsmasq)ELSA-2024-13352024-03-15
Oracle Linux version 8 (unbound)ELSA-2024-09652024-02-28
Oracle Linux version 9 (bind)ELSA-2024-17892024-04-11
Oracle Linux version 9 (bind)ELSA-2024-25512024-05-07
Oracle Linux version 9 (bind-dyndb-ldap)ELSA-2024-17892024-04-11
Oracle Linux version 9 (bind-dyndb-ldap)ELSA-2024-25512024-05-07
Oracle Linux version 9 (dnsmasq)ELSA-2024-13342024-03-15
Oracle Linux version 9 (unbound)ELSA-2024-09772024-02-28



This page is generated automatically and has not been checked for errors or omissions. For clarification or corrections please contact the Oracle Linux ULN team

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