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upgrade to latest dependencies
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bumping knative.dev/pkg df28fea...0c39ce4:
  > 0c39ce4 Allow to disable http2 for the webhook (# 2877)
bumping knative.dev/eventing 7de3ecc...37dc77d:
  > 37dc77d [release-1.10] bump x/net to v0.17 (# 7353)
bumping knative.dev/serving 60754c3...bdc9865:
  > bdc9865 [release-1.10] bump x/net to v0.17 (# 14517)
  > 1c0fa5d Leave a comment which will trigger a new dot release (# 14501)
bumping knative.dev/networking e5d04e8...0b0f210:
  > 0b0f210 [release-1.10] bump x/net to v0.17 (# 879)

Signed-off-by: Knative Automation <automation@knative.team>
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knative-automation committed Oct 23, 2023
1 parent 588cd7c commit 3b6515b
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Showing 4 changed files with 34 additions and 16 deletions.
8 changes: 4 additions & 4 deletions go.mod
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Original file line number Diff line number Diff line change
Expand Up @@ -14,10 +14,10 @@ require (
k8s.io/api v0.25.4
k8s.io/apimachinery v0.25.4
k8s.io/client-go v0.25.4
knative.dev/eventing v0.37.3
knative.dev/eventing v0.37.4
knative.dev/hack v0.0.0-20230417170854-f591fea109b3
knative.dev/pkg v0.0.0-20231011201526-df28feae6d34
knative.dev/serving v0.37.3
knative.dev/pkg v0.0.0-20231023160942-0c39ce4b3a7f
knative.dev/serving v0.37.4
)

require (
Expand Down Expand Up @@ -105,7 +105,7 @@ require (
k8s.io/klog/v2 v2.80.2-0.20221028030830-9ae4992afb54 // indirect
k8s.io/kube-openapi v0.0.0-20221012153701-172d655c2280 // indirect
k8s.io/utils v0.0.0-20221108210102-8e77b1f39fe2 // indirect
knative.dev/networking v0.0.0-20230419144338-e5d04e805e50 // indirect
knative.dev/networking v0.0.0-20231012063223-0b0f2107abef // indirect
sigs.k8s.io/json v0.0.0-20220713155537-f223a00ba0e2 // indirect
sigs.k8s.io/structured-merge-diff/v4 v4.2.3 // indirect
sigs.k8s.io/yaml v1.3.0 // indirect
Expand Down
16 changes: 8 additions & 8 deletions go.sum
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Original file line number Diff line number Diff line change
Expand Up @@ -979,16 +979,16 @@ k8s.io/kube-openapi v0.0.0-20221012153701-172d655c2280 h1:+70TFaan3hfJzs+7VK2o+O
k8s.io/kube-openapi v0.0.0-20221012153701-172d655c2280/go.mod h1:+Axhij7bCpeqhklhUTe3xmOn6bWxolyZEeyaFpjGtl4=
k8s.io/utils v0.0.0-20221108210102-8e77b1f39fe2 h1:GfD9OzL11kvZN5iArC6oTS7RTj7oJOIfnislxYlqTj8=
k8s.io/utils v0.0.0-20221108210102-8e77b1f39fe2/go.mod h1:OLgZIPagt7ERELqWJFomSt595RzquPNLL48iOWgYOg0=
knative.dev/eventing v0.37.3 h1:TFJS/bcWJbcY4YvGg+LNEm0qdmeaMAHdUGHKuOmnX9E=
knative.dev/eventing v0.37.3/go.mod h1:DFZEmPkisDkr3jbTQd6mK+Dno3k9yacSgbkJGIDWg3c=
knative.dev/eventing v0.37.4 h1:JPgz4VvYY0/YO9O+5Y4FNUhuZKNxE1Soo8zKs7JdTBU=
knative.dev/eventing v0.37.4/go.mod h1:oGwuBilJ14D1AJyRnsVR3iujY8aw2mhhPSDFCfUaTis=
knative.dev/hack v0.0.0-20230417170854-f591fea109b3 h1:+W4WBOq83tfGXKhtv8OB/uJeYqze3zh69GKiz1ucuqk=
knative.dev/hack v0.0.0-20230417170854-f591fea109b3/go.mod h1:yk2OjGDsbEnQjfxdm0/HJKS2WqTLEFg/N6nUs6Rqx3Q=
knative.dev/networking v0.0.0-20230419144338-e5d04e805e50 h1:X9rPBYr7Vrm075q0iXTr7/0oklkYoyqvlnrUwNzcUhI=
knative.dev/networking v0.0.0-20230419144338-e5d04e805e50/go.mod h1:o2MyGpGfU5DoSAWCE2f/jnSC9GjGOplCslbA99yDkGo=
knative.dev/pkg v0.0.0-20231011201526-df28feae6d34 h1:H+K37bEBZ2STSWMjCgrdilj38KKZGVxBbob22K99Y50=
knative.dev/pkg v0.0.0-20231011201526-df28feae6d34/go.mod h1:ZRgzFBFmdBsARm6+Pkr9WRG8bXys8rYq64ELfLG6+9w=
knative.dev/serving v0.37.3 h1:ebJCVLb3ZHnrJHNKDw/v5eO2Yz6F3l6lpRgAuNo4KE8=
knative.dev/serving v0.37.3/go.mod h1:v0Xbfp7olb0Gljm5l4qNuLsIf8/2p1rIt/mphxvx1z0=
knative.dev/networking v0.0.0-20231012063223-0b0f2107abef h1:FSEKaGc2ztb65VPn4EiTsjAFsmmHlYHUq+j+CCPlDtU=
knative.dev/networking v0.0.0-20231012063223-0b0f2107abef/go.mod h1:rMVkShVT/14rtscYC4ZfC0hXghOXqj3EheFUDKYEqns=
knative.dev/pkg v0.0.0-20231023160942-0c39ce4b3a7f h1:XCH1qZqW1riR8cjhMGjewxQXlWPrfgxeUorBjpC6lE4=
knative.dev/pkg v0.0.0-20231023160942-0c39ce4b3a7f/go.mod h1:ZRgzFBFmdBsARm6+Pkr9WRG8bXys8rYq64ELfLG6+9w=
knative.dev/serving v0.37.4 h1:EEd5hAT9GKDQXK/smngt8p4P0P8WW50WJyF09A5QT9M=
knative.dev/serving v0.37.4/go.mod h1:zrzvt9L6RjUFcwcY4o3uSqFIEjWHc2hAPvpBenmUt6w=
rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=
rsc.io/quote/v3 v3.1.0/go.mod h1:yEA65RcK8LyAZtP9Kv3t0HmxON59tX3rD+tICJqUlj0=
rsc.io/sampler v1.3.0/go.mod h1:T1hPZKmBbMNahiBKFy5HrXp6adAjACjK9JXDnKaTXpA=
Expand Down
18 changes: 18 additions & 0 deletions vendor/knative.dev/pkg/webhook/webhook.go
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Original file line number Diff line number Diff line change
Expand Up @@ -67,6 +67,17 @@ type Options struct {
// GracePeriod is how long to wait after failing readiness probes
// before shutting down.
GracePeriod time.Duration

// EnableHTTP2 enables HTTP2 for webhooks.
// Mitigate CVE-2023-44487 by disabling HTTP2 by default until the Go
// standard library and golang.org/x/net are fully fixed.
// Right now, it is possible for authenticated and unauthenticated users to
// hold open HTTP2 connections and consume huge amounts of memory.
// See:
// * https://github.com/kubernetes/kubernetes/pull/121120
// * https://github.com/kubernetes/kubernetes/issues/121197
// * https://github.com/golang/go/issues/63417#issuecomment-1758858612
EnableHTTP2 bool
}

// Operation is the verb being operated on
Expand Down Expand Up @@ -219,11 +230,18 @@ func (wh *Webhook) Run(stop <-chan struct{}) error {
QuietPeriod: wh.Options.GracePeriod,
}

// If TLSNextProto is not nil, HTTP/2 support is not enabled automatically.
nextProto := map[string]func(*http.Server, *tls.Conn, http.Handler){}
if wh.Options.EnableHTTP2 {
nextProto = nil
}

server := &http.Server{
Handler: drainer,
Addr: fmt.Sprint(":", wh.Options.Port),
TLSConfig: wh.tlsConfig,
ReadHeaderTimeout: time.Minute, //https://medium.com/a-journey-with-go/go-understand-and-mitigate-slowloris-attack-711c1b1403f6
TLSNextProto: nextProto,
}

eg, ctx := errgroup.WithContext(ctx)
Expand Down
8 changes: 4 additions & 4 deletions vendor/modules.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -951,7 +951,7 @@ k8s.io/utils/net
k8s.io/utils/pointer
k8s.io/utils/strings/slices
k8s.io/utils/trace
# knative.dev/eventing v0.37.3
# knative.dev/eventing v0.37.4
## explicit; go 1.19
knative.dev/eventing/pkg/adapter/v2
knative.dev/eventing/pkg/adapter/v2/test
Expand Down Expand Up @@ -998,12 +998,12 @@ knative.dev/eventing/pkg/observability/client
# knative.dev/hack v0.0.0-20230417170854-f591fea109b3
## explicit; go 1.18
knative.dev/hack
# knative.dev/networking v0.0.0-20230419144338-e5d04e805e50
# knative.dev/networking v0.0.0-20231012063223-0b0f2107abef
## explicit; go 1.18
knative.dev/networking/pkg/apis/networking
knative.dev/networking/pkg/apis/networking/v1alpha1
knative.dev/networking/pkg/config
# knative.dev/pkg v0.0.0-20231011201526-df28feae6d34
# knative.dev/pkg v0.0.0-20231023160942-0c39ce4b3a7f
## explicit; go 1.18
knative.dev/pkg/apis
knative.dev/pkg/apis/duck
Expand Down Expand Up @@ -1067,7 +1067,7 @@ knative.dev/pkg/webhook/psbinding
knative.dev/pkg/webhook/resourcesemantics
knative.dev/pkg/webhook/resourcesemantics/defaulting
knative.dev/pkg/webhook/resourcesemantics/validation
# knative.dev/serving v0.37.3
# knative.dev/serving v0.37.4
## explicit; go 1.18
knative.dev/serving/pkg/apis/autoscaling
knative.dev/serving/pkg/apis/autoscaling/v1alpha1
Expand Down

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