feat: harden setup-db action

.gitea/workflows/cd.yaml

@@ -10,7 +10,7 @@ jobs:
     name: Release
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
         with:
           fetch-depth: 0
       - name: Increment tag

.gitea/workflows/ci.yaml

@@ -13,7 +13,7 @@ jobs:
       - ubuntu-latest
       - linux_${{ matrix.arch }}
     steps:
-      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - name: Setup Trivy
         uses: ./setup-trivy
       - name: Run Trivy
@@ -24,7 +24,7 @@ jobs:
     runs-on:
       - ubuntu-latest
     steps:
-      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - uses: ./setup-trivy
       - name: Setup DB
         id: setup-db
@@ -37,7 +37,7 @@ jobs:
     runs-on:
       - ubuntu-latest
     steps:
-      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - id: giff
         uses: ./get-images-from-files
         with:
@@ -88,7 +88,7 @@ jobs:
     runs-on:
       - ubuntu-latest
     steps:
-      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
       - name: Merge SARIF Files
         uses: ./merge-sarif-files
         with:

.gitea/workflows/prerelease.yaml

@@ -8,7 +8,7 @@ jobs:
     name: Prerelease
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
         with:
           fetch-depth: 0
       - name: Increment tag

setup-db/action.yaml

@@ -10,6 +10,10 @@ inputs:
     description: "Path to the Trivy cache directory (default: ${{runner.temp}}/trivy)"
     required: false
     default: "${{ runner.temp }}/trivy"
+  trivy-version:
+    description: "Trivy docker image version to use (full image reference including digest is recommended)"
+    required: false
+    default: "ghcr.io/aquasecurity/trivy:0.69.3@sha256:bcc376de8d77cfe086a917230e818dc9f8528e3c852f7b1aff648949b6258d1c"
 
 outputs:
   cache-dir:
@@ -24,7 +28,7 @@ runs:
       run: |
         echo "current-date=$(date +%Y-%m-%d)" >> $GITHUB_OUTPUT
     - id: restore-db
-      uses: actions/cache@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
+      uses: actions/cache@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5
       with:
         path: ${{ inputs.cache-dir }}
         key: trivy-db-${{ steps.current-date.outputs.current-date }}
@@ -32,4 +36,21 @@ runs:
           trivy-db-${{ steps.current-date.outputs.current-date }}
     - if: steps.restore-db.outputs.cache-hit != 'true'
       shell: bash
-      run: trivy fs --download-db-only --cache-dir "${{ inputs.cache-dir }}"
+      run: |
+        docker run --rm \
+          --name trivy-db-download \
+          --user "$(id -u):$(id -g)" \
+          --read-only \
+          --env-file /dev/null \
+          --cap-drop ALL \
+          --pids-limit 64 \
+          --memory=512m \
+          --memory-swap=512m \
+          --cpus=1 \
+          --ipc private \
+          --cgroupns private \
+          --security-opt no-new-privileges \
+          --security-opt apparmor=docker-default \
+          --tmpfs /tmp:rw,noexec,nosuid,nodev,size=1g \
+          --mount type=bind,src=${{ inputs.cache-dir }},dst=/cache \
+          ${{ inputs.trivy-version }} fs --download-db-only --cache-dir /cache

setup-trivy/action.yaml

@@ -40,7 +40,7 @@ runs:
         echo "VERSION=$VERSION" >> $GITHUB_OUTPUT
     - name: Cache Trivy binary
       id: cache-trivy
-      uses: actions/cache@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
+      uses: actions/cache@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5
       with:
         path: /usr/local/bin/trivy
         key: trivy-${{ steps.version.outputs.version }}-${{ steps.arch.outputs.arch }}