k3s/1.31.4.1-r0: cve remediation

[octo-sts]

k3s/1.31.4.1-r0: fix GHSA-w32m-9786-jp63/GHSA-xr7q-jx4m-x55m/

Advisory data: https://github.com/wolfi-dev/advisories/blob/main/k3s.advisories.yaml

[octo-sts]

Gen AI suggestions to solve the build error:

• Detected Error: The build error appears to be incompatible Go versions between the k3s upstream version requirement (go1.22.9) and the available Go version in the build environment (1.23.4)

• Error Category: Version incompatibility

• Failure Point: During initialization of version.sh script when checking Go version requirements

• Root Cause Analysis: The k3s version being built (1.31.4+k3s1) expects Go 1.22.9 as specified in the Kubernetes dependencies.yaml, but the build environment is using Go 1.23.4

• Suggested Fix:

1. Add version constraint override in the build script by modifying version.sh:

pipeline:
  - runs: |
      # Override the go version check before running version.sh
      sed -i 's/VERSION_GOLANG=.*/VERSION_GOLANG=go1.23.4/' scripts/version.sh

• Explanation: k3s inherits Go version requirements from upstream Kubernetes. The build is failing because there's a version mismatch. By overriding the version check, we allow the build to proceed with Go 1.23.4 which is compatible with the codebase but newer than the specified version.

• Additional Notes:

• This is a safe override since Go 1.23.x is backward compatible with Go 1.22.x
• The proper long-term fix would be to update the upstream dependencies.yaml when k3s updates their Go version requirements
• Monitor for any potential compilation issues during the build process

• References:

• K3s Build System: https://github.com/k3s-io/k3s/blob/master/BUILDING.md
• Go Release Policy: https://golang.org/doc/devel/release
• K3s Version Management: https://github.com/k3s-io/k3s/blob/master/scripts/version.sh