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Alpine Linux: CVE-2020-19861: Out-of-bounds Read

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Alpine Linux: CVE-2020-19861: Out-of-bounds Read

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:P/I:N/A:N)
Published
01/21/2022
Created
03/22/2024
Added
03/21/2024
Modified
03/22/2024

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.

Solution(s)

  • alpine-linux-upgrade-ldns

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