CVE-2019-16791

Published: Jan 22, 2020Modified: Jun 17, 2026

5.9

Vector

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

Exploitability: 2.2 / Impact: 3.6

Source: NVD

Description

In postfix-mta-sts-resolver before 0.5.1, All users can receive incorrect response from daemon under rare conditions, rendering downgrade of effective STS policy.

Affected (1)

Products: Postfix Mta Sts Resolver Project: Postfix Mta Sts Resolver

Postfix Mta Sts Resolver Project

1 product

Postfix Mta Sts Resolver

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Postfix Mta Sts Resolver Project Postfix Mta Sts Resolver	Before 0.5.1

Related CWEs

CWE-757

Selection of Less-Secure Algorithm During Negotiation ('Algorithm Downgrade')

A protocol or its implementation supports interaction between multiple actors and allows those actors to negotiate which algorithm should be used as a protection mechanism such as encryption or authentication, but it does not select the strongest algorithm that is available to both parties.

References (4)

https://gist.github.com/Snawoot/b9da85d6b26dea5460673b29df1adc6b

Source: security-advisories@github.com

PatchThird Party Advisory

https://github.com/Snawoot/postfix-mta-sts-resolver/security/advisories/GHSA-h92m-42h4-82f6

Source: security-advisories@github.com

PatchThird Party Advisory

https://gist.github.com/Snawoot/b9da85d6b26dea5460673b29df1adc6b

Source: af854a3a-2127-422b-91ae-364da2661108

PatchThird Party Advisory

https://github.com/Snawoot/postfix-mta-sts-resolver/security/advisories/GHSA-h92m-42h4-82f6

Source: af854a3a-2127-422b-91ae-364da2661108

PatchThird Party Advisory

Timeline

No history available yet.