PT-2019-14834 · Postfix · Postfix-Mta-Sts-Resolver

Snawoot · Published 2019-07-05 · Updated 2020-10-23 · CVE-2019-16791

Positive Technologies (AI Summary)

CVSS v4.0

8.7

High

Base vector

AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N

Name of the Vulnerable Software and Affected Versions postfix-mta-sts-resolver versions prior to 0.5.1

Description The issue affects all users and can cause the daemon to return an incorrect response under rare conditions, leading to a downgrade of the effective STS policy.

Recommendations For versions prior to 0.5.1, update to version 0.5.1 to resolve the issue. As a temporary workaround, users may apply the provided patches to older supported versions.

Fix

Weakness Enumeration

CWE-757

Related Identifiers

CVE-2019-16791

GHSA-H92M-42H4-82F6

PYSEC-2020-174

Affected Products

Postfix-Mta-Sts-Resolver

References · 11

• https://github.com/Snawoot/postfix-mta-sts-resolver/security/advisories/GHSA-h92m-42h4-82f6 · Patch
• https://osv.dev/vulnerability/CVE-2019-16791 · Vendor Advisory
• https://gist.github.com/Snawoot/b9da85d6b26dea5460673b29df1adc6b · Patch
• https://osv.dev/vulnerability/PYSEC-2020-174 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-h92m-42h4-82f6 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-16791 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2019-16791 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2019-16791 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2019-16791 · Security Note
• https://github.com/pypa/advisory-database/tree/main/vulns/postfix-mta-sts-resolver/PYSEC-2020-174.yaml · Note
• https://github.com/Snawoot/postfix-mta-sts-resolver · Note