CVE-2020-12460

CRITICAL Year: 2020
CVSS v3 Score
9.8
Critical
CVSS v2 Score
7.5
High
Weakness Type
CWE-787
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Vulnerability Description

OpenDMARC through 1.3.2 and 1.4.x through 1.4.0-Beta1 has improper null termination in the function opendmarc_xml_parse that can result in a one-byte heap overflow in opendmarc_xml when parsing a specially crafted DMARC aggregate report. This can cause remote memory corruption when a '\0' byte overwrites the heap metadata of the next chunk and its PREV_INUSE flag.

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