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ubuntuUbuntuUSN-4567-1
HistoryOct 05, 2020 - 12:00 a.m.

OpenDMARC vulnerability

2020-10-0500:00:00
ubuntu.com
50
opendmarc
vulnerability
signature-bypass
ubuntu 18.04 esm
spam filters
abuse filters
esm

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

AI Score

9.5

Confidence

High

EPSS

0.006

Percentile

78.8%

Releases

  • Ubuntu 18.04 ESM

Packages

  • opendmarc - Open Source implementation of the DMARC specification

Details

It was discovered that OpenDMARC is prone to a signature-bypass vulnerability
with multiple “From:” addresses. An attacker could use it to bypass spam and
abuse filters.

OSVersionArchitecturePackageVersionFilename
Ubuntu18.04noarchlibopendmarc2< 1.3.2-3ubuntu0.1UNKNOWN
Ubuntu18.04noarchlibopendmarc-dev< 1.3.2-3ubuntu0.1UNKNOWN
Ubuntu18.04noarchlibopendmarc2-dbgsym< 1.3.2-3ubuntu0.1UNKNOWN
Ubuntu18.04noarchopendmarc< 1.3.2-3ubuntu0.1UNKNOWN
Ubuntu18.04noarchopendmarc-dbgsym< 1.3.2-3ubuntu0.1UNKNOWN
Ubuntu18.04noarchrddmarc< 1.3.2-3ubuntu0.1UNKNOWN

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

AI Score

9.5

Confidence

High

EPSS

0.006

Percentile

78.8%