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CVE-2020-19861
Published: Jan 21, 2022
Modified: Aug 4, 2024
PUBLISHED
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.
| Vendor | Product | Versions |
|---|---|---|
n/a | n/a | affected n/a |
References
https://github.com/NLnetLabs/ldns/issues/51
x_refsource_MISC
https://cwe.mitre.org/data/definitions/126.html
x_refsource_MISC
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