vulnerability
Arch Linux: Authentication bypass (CVE-2019-20790)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:N/AC:M/Au:N/C:P/I:P/A:P) | Apr 27, 2020 | Jul 11, 2025 | Nov 27, 2025 |
Severity
7
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:P)
Published
Apr 27, 2020
Added
Jul 11, 2025
Modified
Nov 27, 2025
Description
OpenDMARC before 1.4.1, when used with pypolicyd-spf 2.0.2, allows attacks that bypass SPF and DMARC authentication in situations where the HELO field is inconsistent with the MAIL FROM field.
Solution
arch-linux-upgrade-latest
References
- CVE-2019-20790
- https://attackerkb.com/topics/CVE-2019-20790
- URL-https://bugs.launchpad.net/pypolicyd-spf/+bug/1838816
- 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/KBOGOQOK3TIWWJV66MW5YWNRJAFFYGR5/
- URL-https://security.archlinux.org/ASA-202105-13
- URL-https://sourceforge.net/p/opendmarc/tickets/235/
- URL-https://www.usenix.org/system/files/sec20fall_chen-jianjun_prepub_0.pdf
- CWE-290
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