dhi.io/stunnel
Stunnel
stunnel is a TLS proxy that adds SSL/TLS encryption to TCP services with no native TLS support, forwarding plaintext traffic between clients and backends without modifying the underlying application.
pushed 19 hours ago
linux/amd64, linux/arm64
24.27 MB
for linux/amd64
93
for linux/amd64
Active support
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Build Level 3
Tamper-evident proof of how and from what sources this image was built. Build Level 3 is the highest the SLSA build track defines.
CycloneDX SBOM + SPDX SBOM
A software bill of materials in both CycloneDX and SPDX formats so it drops straight into your existing tooling. Audit exactly what you're shipping.
A Vulnerability Exploitability exchange document, Docker's assessment of which CVEs actually affect this image and which don't apply, so you can focus on real risk instead of chasing false positives.
Available
A link to everything used to build the image, package source code, Git repos, and build files, so you can audit or reproduce the build and stay compliant with open source licenses.
Every known vulnerability in this image, shown in full rather than hidden. The VEX data flags which ones actually apply, so you can tell real exposure from noise before you ship.
Exactly what changed in this build, down to the package bumps and fixes behind the version you're pulling.
Verifies no keys, tokens, or credentials were accidentally baked into the image.
The image layers were scanned for known malware signatures before publishing.
About stunnel
stunnel is a TLS encryption proxy that adds SSL/TLS protection to network connections made by programs that have no built-in TLS support. It sits between a client and a server, terminating or originating TLS on one side and passing plaintext traffic on the other, so that legacy services can participate in encrypted communication without any modification to their source code.
Common use cases include wrapping plaintext SMTP, IMAP, LDAP, and PostgreSQL connections with TLS, offloading TLS termination from backend services that cannot handle certificates directly, and creating authenticated TLS tunnels between two hosts. stunnel operates in either client mode (connecting to a remote TLS endpoint) or server mode (accepting TLS connections and forwarding plaintext to a local service), and a single process can run multiple named service sections simultaneously.
For more information, visit the stunnel project website.
About Docker Hardened Images
Docker Hardened Images are built to meet the highest security and compliance standards. They provide a trusted foundation for containerized workloads by incorporating security best practices from the start.
Why use Docker Hardened Images?
These images are published with near-zero known CVEs, include signed provenance, and come with a complete Software Bill of Materials (SBOM) and VEX metadata. They're designed to secure your software supply chain while fitting seamlessly into existing Docker workflows.
Trademarks
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