CVE-2020-12460
Published
CVSS v3
9.8
CRITICAL
CVSS v2
7.5
HIGH
Affected
1
PROJECT
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.
This is the Trusted Domain Project's impementation of the DMARC protocol libary and mail filter, called OpenDMARC. A "milter" connects to unix-based mailers (originally, sendmail, but now many) and provides a standard filtering API.
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