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 | Nov 27, 2025 |
Severity
7
CVSS
(AV:N/AC:L/Au:N/C:P/I:P/A:P)
Published
Jul 27, 2020
Added
Jul 11, 2025
Modified
Nov 27, 2025
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
- CVE-2020-12460
- https://attackerkb.com/topics/CVE-2020-12460
- URL-https://github.com/trusteddomainproject/OpenDMARC/issues/64
- URL-https://lists.debian.org/debian-lts-announce/2021/04/msg00026.html
- URL-https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2D4JGHMALEJEWWG56DKR5OZB22TK7W5B/
- URL-https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JHDKMCZGE3W4XBP76NLI2Q7IOZHXLD4A/
- URL-https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KBOGOQOK3TIWWJV66MW5YWNRJAFFYGR5/
- URL-https://security.archlinux.org/ASA-202009-1
- URL-https://security.gentoo.org/glsa/202011-02
- URL-https://sourceforge.net/projects/opendmarc/
- CWE-787
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