| Name | CVE-2019-20790 |
| Description | OpenDMARC through 1.3.2 and 1.4.x, 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more) |
| NVD severity | medium |
| Debian Bugs | 977766 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| opendmarc (PTS) | stretch | 1.3.2-2+deb9u2 | vulnerable |
| stretch (security) | 1.3.2-2+deb9u3 | vulnerable | |
| buster | 1.3.2-6+deb10u2 | vulnerable | |
| buster (security) | 1.3.2-6+deb10u1 | vulnerable | |
| bullseye | 1.4.0~beta1+dfsg-6 | fixed | |
| bookworm, sid | 1.4.1.1-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| opendmarc | source | (unstable) | 1.4.0~beta1+dfsg-4 | 977766 |
[buster] - opendmarc <no-dsa> (Minor issue)
[stretch] - opendmarc <no-dsa> (Minor issue)
https://bugs.launchpad.net/pypolicyd-spf/+bug/1838816
https://sourceforge.net/p/opendmarc/tickets/235/
https://www.usenix.org/system/files/sec20fall_chen-jianjun_prepub_0.pdf
Issue is disputed upstream and considered "work as designed" (wontfix)
https://github.com/trusteddomainproject/OpenDMARC/blob/develop/SECURITY/CVE-2019-20790
Upstream reconsidering position:
https://github.com/trusteddomainproject/OpenDMARC/issues/158