Summary
Package updates are available for Amazon Linux 2023 that fix the following vulnerabilities: CVE-2025-61727: crypto/x509: excluded subdomain constraint does not restrict wildcard SANs An excluded subdomain constraint in a certificate chain does not restrict the usage of wildcard SANs in the leaf certificate. For example a constraint that excludes the subdomain test.example.com does not prevent a leaf certificate from claiming the SAN *.example.com.
Fixed packages 3
| Release | Package | Fixed in |
|---|---|---|
| Amazon Linux · 2023 | docker | 0:25.0.13-1.amzn2023.0.3 |
| Amazon Linux · 2023 | docker-debuginfo | 0:25.0.13-1.amzn2023.0.3 |
| Amazon Linux · 2023 | docker-debugsource | 0:25.0.13-1.amzn2023.0.3 |
Vulnerabilities 1
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Medium 6.5
Improper application of excluded DNS name constraints when verifying wildcard names in crypto/x509
An excluded subdomain constraint in a certificate chain does not restrict the usage of wildcard SANs in the leaf certificate. For example a constraint that excludes the subdomain test.example.com does not prevent a leaf certificate from claiming the SAN *.exa…
References
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web
https://alas.aws.amazon.com/cve/html/CVE-2025-61727.html