From c1610ac12e075327ac5a3b9eb291e8f7fb67199b Mon Sep 17 00:00:00 2001
From: Andreas Katzenberger <katzenbergeran87461@th-nuernberg.de>
Date: Mon, 13 Apr 2026 21:42:22 +0200
Subject: [PATCH] Update because of security check

---
 Dockerfile | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/Dockerfile b/Dockerfile
index df876e4..fc2ee10 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 # STAGE 1: Builder
-FROM alpine:latest AS builder
+FROM alpine:3.23 AS builder
 
 # Pakete installieren (gcc & Standardbibliotheken)
 RUN apk add --no-cache gcc musl-dev
@@ -14,11 +14,15 @@ COPY deployment.c .
 RUN gcc -O2 -o deployment deployment.c
 
 # STAGE 2: Runner
-FROM alpine:latest
+FROM alpine:3.23
 
 # Arbeitsverzeichnis setzen
 WORKDIR /app
 
+# OPTIMIERUNG: System-Update durchführen, um CVEs zu fixen
+# 'apk upgrade' installiert die Version 3.3.7-r0 von OpenSSL
+RUN apk update && apk upgrade --no-cache
+
 # Non-Root User anlegen
 # RUN addgroup -S appgroup
 # RUN adduser -S appuser -G appgroup