vulnerability
Arch Linux: Denial of service (CVE-2020-12460)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:N/AC:L/Au:N/C:P/I:P/A:P) | Jul 27, 2020 | Jul 11, 2025 | Mar 25, 2026 |
Severity
7
CVSS
(AV:N/AC:L/Au:N/C:P/I:P/A:P)
Published
Jul 27, 2020
Added
Jul 11, 2025
Modified
Mar 25, 2026
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.
Solution
arch-linux-upgrade-latest
References
Rapid7 Labs
2026 Global Threat Landscape Report
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