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chore: Bump github.com/projectcontour/contour from 1.25.2 to 1.26.1 #190

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@dependabot dependabot bot commented on behalf of github Oct 23, 2023

Bumps github.com/projectcontour/contour from 1.25.2 to 1.26.1.

Release notes

Sourced from github.com/projectcontour/contour's releases.

Contour v1.26.1

We are delighted to present version v1.26.1 of Contour, our layer 7 HTTP reverse proxy for Kubernetes clusters.

All Changes

This release includes various dependency bumps and fixes for CVE-2023-44487, including:

  • Updates Envoy to v1.27.2. See the release notes for v1.27.1 here and v1.27.2 here.
  • Update to Go v1.20.10. See the Go release notes for more information.

Additional mitigations have been added for CVE-2023-44487 in the form of new configuration fields:

Max HTTP requests per IO cycle is configurable as an additional mitigation for HTTP/2 CVE-2023-44487

Envoy mitigates CVE-2023-44487 with some default runtime settings, however the http.max_requests_per_io_cycle does not have a default value. This change allows configuring this runtime setting via Contour configuration to allow administrators of Contour to prevent abusive connections from starving resources from other valid connections. The default is left as the existing behavior (no limit) so as not to impact existing valid traffic.

The Contour ConfigMap can be modified similar to the following (and Contour restarted) to set this value:

listener:
  max-requests-per-io-cycle: 10

(Note this can be used in addition to the existing Listener configuration field listener.max-requests-per-connection which is used primarily for HTTP/1.1 connections and is an approximate limit for HTTP/2)

HTTP/2 max concurrent streams is configurable

This field can be used to limit the number of concurrent streams Envoy will allow on a single connection from a downstream peer. It can be used to tune resource usage and as a mitigation for DOS attacks arising from vulnerabilities like CVE-2023-44487.

The Contour ConfigMap can be modified similar to the following (and Contour restarted) to set this value:

listener:
  http2-max-concurrent-streams: 50

Installing and Upgrading

For a fresh install of Contour, consult the getting started documentation.

To upgrade an existing Contour installation, please consult the upgrade documentation.

... (truncated)

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Bumps [github.com/projectcontour/contour](https://github.com/projectcontour/contour) from 1.25.2 to 1.26.1.
- [Release notes](https://github.com/projectcontour/contour/releases)
- [Changelog](https://github.com/projectcontour/contour/blob/main/RELEASES.md)
- [Commits](projectcontour/contour@v1.25.2...v1.26.1)

---
updated-dependencies:
- dependency-name: github.com/projectcontour/contour
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
@dependabot dependabot bot requested a review from a team as a code owner October 23, 2023 05:16
@dependabot dependabot bot added dependencies Pull requests that update a dependency file go type::chore labels Oct 23, 2023
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dependabot bot commented on behalf of github Nov 6, 2023

Superseded by #199.

@dependabot dependabot bot closed this Nov 6, 2023
@dependabot dependabot bot deleted the dependabot/go_modules/github.com/projectcontour/contour-1.26.1 branch November 6, 2023 06:00
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