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Vulnerability of OpenDMARC: adress spoofing via From field duplication

Synthesis of the vulnerability 

An attacker can make OpenDMARC skip the DMARC signature check via duplication of From field, in order to spoof a DNS domain.
Impacted products: Debian, Fedora, Ubuntu.
Severity of this bulletin: 1/4.
Creation date: 20/09/2019.
Références of this threat: CVE-2019-16378, DSA-4526-1, FEDORA-2019-24b3f84f6e, FEDORA-2019-e1f0417a24, USN-4567-1, VIGILANCE-VUL-30369.

Description of the vulnerability 

An attacker can make OpenDMARC skip the DMARC signature check via duplication of From field, in order to spoof a DNS domain.
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This threat note impacts software or systems such as Debian, Fedora, Ubuntu.

Our Vigil@nce team determined that the severity of this cybersecurity note is low.

The trust level is of type confirmed by the editor, with an origin of internet client.

An attacker with a expert ability can exploit this vulnerability note.

Solutions for this threat 

Debian 9, 10: new opendmarc packages.
New packages are available:
  Debian 9: opendmarc 1.3.2-2+deb9u2
  Debian 10: opendmarc 1.3.2-6+deb10u1

Fedora: new opendmarc packages.
New packages are available:
  Fedora 29: opendmarc 1.3.2-1.fc29
  Fedora 30: opendmarc 1.3.2-1.fc30

Ubuntu 18.04: new opendmarc packages.
New packages are available:
  Ubuntu 18.04 LTS: opendmarc 1.3.2-3ubuntu0.1
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