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Fixed

LIN1021-7268 : Security Advisory - bind - CVE-2023-50387

Created: Feb 18, 2024 Updated: Mar 13, 2024

Resolved Date: Mar 10, 2024

Found In Version: 10.21.20.1

Severity: Standard

Applicable for: Wind River Linux LTS 21

Component/s: Userspace

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.

CREATE(Triage):(User=admin) CVE-2023-50387 (https://nvd.nist.gov/vuln/detail/CVE-2023-50387)

CVEs

CVE-2023-50387