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Distrust compromised eMudhra intermediates #22

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Distrust compromised eMudhra intermediates #22

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7 changes: 7 additions & 0 deletions RemoteSigner/Dockerfile
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Expand Up @@ -18,5 +18,12 @@ RUN dotnet publish "RemoteSigner.csproj" \
-p:PublishReadyToRun=true

FROM base AS final

# The eMudhra intermediates compromised in October 2026 chain to this root, and AL2023 has not shipped a ca-certificates release without it yet
RUN dnf -y upgrade ca-certificates \
&& awk '/^# emSign ECC Root CA - G3$/{f=1} f&&/BEGIN CERTIFICATE/{p=1} p{print} p&&/END CERTIFICATE/{exit}' /etc/pki/ca-trust/extracted/pem/tls-ca-bundle.pem > /etc/pki/ca-trust/source/blocklist/emsign-ecc-root-ca-g3.pem \
&& update-ca-trust extract \
&& dnf clean all

WORKDIR /var/task
COPY --from=publish /app/publish .
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