CVEvulnerability

CVE-2020-12460

9.8 CRITICAL Published 2020-07-27 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2020-07-27
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
7.5 HIGH — AV:N/AC:L/Au:N/C:P/I:P/A:P
Weaknesses
CWE-787

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.

Affected configurations

• trusteddomain opendmarc (<= 1.3.2) • trusteddomain opendmarc 1.4.0 • fedoraproject fedora 33 • fedoraproject fedora 34 • debian debian linux 9.0

Related

Weakness · CWE (1)

  • CWE-787 Out-of-bounds Write weakness

References