CVEs-PoC/2020/CVE-2020-19861.md

CVE-2020-19861

Description

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.

POC

Reference

No PoCs from references.

Github

• https://github.com/ARPSyndicate/cvemon
• https://github.com/Live-Hack-CVE/CVE-2020-19861
• https://github.com/pokerfacett/MY_CVE_CREDIT