CVE-2020-19861

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.
References
Link Resource
https://github.com/NLnetLabs/ldns/issues/51 Exploit Issue Tracking
https://cwe.mitre.org/data/definitions/126.html Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:nlnetlabs:ldns:1.7.1:*:*:*:*:*:*:*

Information

Published : 2022-01-21 03:15

Updated : 2022-10-05 05:08


NVD link : CVE-2020-19861

Mitre link : CVE-2020-19861

Products Affected
CWE
CWE-125

Out-of-bounds Read