[Medium] Patch coredns for CVE-2025-68151

[v-aaditya]

Merge Checklist

All boxes should be checked before merging the PR (just tick any boxes which don't apply to this PR)

• The toolchain has been rebuilt successfully (or no changes were made to it)
• The toolchain/worker package manifests are up-to-date
• Any updated packages successfully build (or no packages were changed)
• Packages depending on static components modified in this PR (Golang, *-static subpackages, etc.) have had their Release tag incremented.
• Package tests (%check section) have been verified with RUN_CHECK=y for existing SPEC files, or added to new SPEC files
• All package sources are available
• cgmanifest files are up-to-date and sorted (./cgmanifest.json, ./toolkit/scripts/toolchain/cgmanifest.json, .github/workflows/cgmanifest.json)
• LICENSE-MAP files are up-to-date (./LICENSES-AND-NOTICES/SPECS/data/licenses.json, ./LICENSES-AND-NOTICES/SPECS/LICENSES-MAP.md, ./LICENSES-AND-NOTICES/SPECS/LICENSE-EXCEPTIONS.PHOTON)
• All source files have up-to-date hashes in the *.signatures.json files
• sudo make go-tidy-all and sudo make go-test-coverage pass
• Documentation has been updated to match any changes to the build system
• Ready to merge

---

Summary

Patch coredns for CVE-2025-68151

• Upstream patch has been backported manually.

• Patch for https3 module has not been included as this module does not exist in our version of coredns.

• vendor/golang.org/x/net/netutil/listen.go has been added to vendor directory and updated "module.txt" for the same.

• Upstream Patch Reference: https://github.com/coredns/coredns/commit/0d8cbb1a6bcb6bc9c1a489865278b8725fa20812.patch

Change Log

• modified: SPECS/coredns/coredns.spec
• new file: SPECS/coredns/CVE-2025-68151.patch

Does this affect the toolchain?

NO

Links to CVEs

• https://nvd.nist.gov/vuln/detail/CVE-2025-68151

Test Methodology

• Local build was successful.

• License check script shows no warning.

• Build log
  coredns-1.11.4-13.azl3.src.rpm.log
  coredns-1.11.4-13.azl3.src.rpm.test.log

• Patch applies cleanly

• Installation Check

• Uninstallation Check

[Kanishk-Bansal]

Build

[v-aaditya]

Build

Buddy Build has passed !

[suresh-thelkar]

It seems all the essential security features from the upstream patch are correctly included:

• gRPC connection and stream limiting (MaxGRPCStreams, MaxGRPCConnections)
• HTTPS connection limiting (MaxHTTPSConnections)
• netutil.LimitListener usage for connection limiting
• Default limits: 256 max streams, 200 max connections
• New plugins: grpc_server and https

Since the number of code changes are huge, It would be better if we can also run the full build and proceed further.

[Kanishk-Bansal]

Full Build

[v-aaditya]

Full Build

Full build has passed !

[kgodara912]

Waiting for full build results.