CVE-2019-16791 – postfix-mta-sts-resolver

Package

Manager: pip
Name: postfix-mta-sts-resolver
Vulnerable Version: >=0 <0.5.1

Severity

Level: High

CVSS v3.1: CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:N

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N

EPSS: 0.003 pctl0.52849

Details

postfix-mta-sts-resolver Algorithm Downgrade vulnerability ## Incorrect query parsing ### Impact All users of versions prior to 0.5.1 can receive incorrect response from daemon under rare conditions, rendering downgrade of effective STS policy. ### Patches Problem has been patched in version 0.5.1 ### Workarounds Users may remediate this vulnerability without upgrading by applying [these patches](https://gist.github.com/Snawoot/b9da85d6b26dea5460673b29df1adc6b) to older suppoorted versions. ### For more information If you have any questions or comments about this advisory: * Open an issue in [postfix-mta-sts-resolver repo](https://github.com/Snawoot/postfix-mta-sts-resolver) * Email me at [vladislav at vm-0 dot com](mailto:vladislav-ex-gh-advisory@vm-0.com)

Metadata

Created: 2019-07-05T21:06:58Z
Modified: 2024-10-21T20:07:58Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2019/07/GHSA-h92m-42h4-82f6/GHSA-h92m-42h4-82f6.json
CWE IDs: ["CWE-757"]
Alternative ID: GHSA-h92m-42h4-82f6
Finding: F159
Auto approve: 1