When a zone file in ldns 1.7.1 is parsed, the function ldns_nsec3_salt_data is too trusted for the length value obtained from the zone file. When the memcpy is copied, the 0xfe - ldns_rdf_size(salt_rdf) byte data can be copied, causing heap overflow information leakage.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2022-01-21T14:22:16

Updated: 2024-08-04T14:15:28.490Z

Reserved: 2020-08-13T00:00:00

Link: CVE-2020-19861

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2022-01-21T15:15:07.607

Modified: 2022-10-05T17:08:19.690

Link: CVE-2020-19861

cve-icon Redhat

Severity :

Publid Date: 2021-09-26T00:00:00Z

Links: CVE-2020-19861 - Bugzilla