| summary |
ZITADEL Go's GRPC example code vulnerability - GO-2024-2687 HTTP/2 CONTINUATION flood in net/http
### Summary
Applications using the `zitadel-go` `v3` library (`next` branch) might be impacted by package vulnerabilities.
The output of `govulncheck` suggests that only `example` code seems to be impacted, based on 1 of the 3 potential vulnerabilities. This vulnerability is located in the transitive dependency `golang.org/x/net v0.19.0`, [CVE-2023-45288](https://www.cve.org/CVERecord?id=CVE-2023-45288)
### Patches
3.0.0-next versions are fixed on >= [3.0.0-next.3](https://github.com/zitadel/zitadel-go/releases/tag/v3.0.0-next.3)
ZITADEL recommends upgrading to the latest versions available in due course.
### Workarounds
If updating the zitadel-go library is not an option, updating the affected (transient) dependencies works as a workaround.
### Details
#### Direct deps:
- [GO-2024-2631](https://pkg.go.dev/vuln/GO-2024-2631) Decompression bomb vulnerability in github.com/go-jose/go-jose
- github.com/go-jose/go-jose/v3 Fixed in v3.0.3.
This module is necessary because [github.com/go-jose/go-jose/v3](https://pkg.go.dev/github.com/go-jose/go-jose/v3@v3.0.1) is imported in `github.com/zitadel/zitadel-go/v3/pkg/client/system`.
- [GO-2024-2611](https://pkg.go.dev/vuln/GO-2024-2611) Infinite loop in JSON unmarshaling in google.golang.org/protobuf
- google.golang.org/protobuf/encoding/protojson
- google.golang.org/protobuf/internal/encoding/json Fixed in v1.33.0.
This module is necessary because [google.golang.org/protobuf/reflect/protoreflect](https://pkg.go.dev/google.golang.org/protobuf@v1.31.0/reflect/protoreflect) is imported in `github.com/zitadel/zitadel-go/v3/example/api/grpc/proto`.
#### Transitive deps:
- [GO-2024-2687](https://pkg.go.dev/vuln/GO-2024-2687) HTTP/2 CONTINUATION flood in net/http
- golang.org/x/net/http2 Fixed in v0.23.0.
This module is necessary because [golang.org/x/net/trace](https://pkg.go.dev/golang.org/x/net@v0.19.0/trace) is imported in:
- `github.com/zitadel/zitadel-go/v3/example/api/grpc`
- `google.golang.org/grpc`
#### `govulncheck`
```console
=== Symbol Results ===
Vulnerability #1: GO-2024-2687
HTTP/2 CONTINUATION flood in net/http
More info: https://pkg.go.dev/vuln/GO-2024-2687
Module: golang.org/x/net
Found in: golang.org/x/net@v0.19.0
Fixed in: golang.org/x/net@v0.23.0
Example traces found:
#1: example/api/grpc/proto/api_grpc.pb.go:239:34: proto.exampleServiceAddTasksServer.Recv calls grpc.serverStream.RecvMsg, which eventually calls http2.ConnectionError.Error
#2: pkg/client/auth.go:92:20: client.ScopeProjectID calls fmt.Sprintf, which eventually calls http2.ErrCode.String
#3: pkg/client/auth.go:92:20: client.ScopeProjectID calls fmt.Sprintf, which eventually calls http2.FrameHeader.String
#4: pkg/client/auth.go:92:20: client.ScopeProjectID calls fmt.Sprintf, which eventually calls http2.FrameType.String
#5: example/api/grpc/main.go:63:24: grpc.main calls grpc.Server.Serve, which eventually calls http2.Framer.ReadFrame
#6: example/api/grpc/main.go:63:24: grpc.main calls grpc.Server.Serve, which eventually calls http2.Framer.WriteContinuation
#7: example/api/grpc/main.go:63:24: grpc.main calls grpc.Server.Serve, which eventually calls http2.Framer.WriteData
#8: example/api/grpc/main.go:63:24: grpc.main calls grpc.Server.Serve, which eventually calls http2.Framer.WriteGoAway
#9: example/api/grpc/main.go:63:24: grpc.main calls grpc.Server.Serve, which eventually calls http2.Framer.WriteHeaders
#10: example/api/grpc/main.go:63:24: grpc.main calls grpc.Server.Serve, which eventually calls http2.Framer.WritePing
#11: example/api/grpc/main.go:63:24: grpc.main calls grpc.Server.Serve, which eventually calls http2.Framer.WriteRSTStream
#12: example/api/grpc/main.go:63:24: grpc.main calls grpc.Server.Serve, which eventually calls http2.Framer.WriteSettings
#13: example/api/grpc/main.go:63:24: grpc.main calls grpc.Server.Serve, which eventually calls http2.Framer.WriteSettingsAck
#14: example/api/grpc/main.go:63:24: grpc.main calls grpc.Server.Serve, which eventually calls http2.Framer.WriteWindowUpdate
#15: example/api/grpc/proto/api_grpc.pb.go:239:34: proto.exampleServiceAddTasksServer.Recv calls grpc.serverStream.RecvMsg, which eventually calls http2.GoAwayError.Error
#16: pkg/client/auth.go:92:20: client.ScopeProjectID calls fmt.Sprintf, which eventually calls http2.Setting.String
#17: pkg/client/auth.go:92:20: client.ScopeProjectID calls fmt.Sprintf, which eventually calls http2.SettingID.String
#18: example/api/grpc/main.go:63:24: grpc.main calls grpc.Server.Serve, which eventually calls http2.SettingsFrame.ForeachSetting
#19: example/api/grpc/proto/api_grpc.pb.go:239:34: proto.exampleServiceAddTasksServer.Recv calls grpc.serverStream.RecvMsg, which eventually calls http2.StreamError.Error
#20: example/app/app.go:111:27: app.main calls http.ListenAndServe, which eventually calls http2.chunkWriter.Write
#21: example/api/grpc/proto/api_grpc.pb.go:239:34: proto.exampleServiceAddTasksServer.Recv calls grpc.serverStream.RecvMsg, which eventually calls http2.connError.Error
#22: pkg/client/auth.go:92:20: client.ScopeProjectID calls fmt.Sprintf, which eventually calls http2.duplicatePseudoHeaderError.Error
#23: pkg/client/auth.go:23:42: client.JWTAuthentication calls profile.NewJWTProfileTokenSource, which eventually calls http2.gzipReader.Close
#24: pkg/authentication/state.go:20:26: authentication.State.Encrypt calls crypto.EncryptAES, which eventually calls http2.gzipReader.Read
#25: pkg/client/auth.go:92:20: client.ScopeProjectID calls fmt.Sprintf, which eventually calls http2.headerFieldNameError.Error
#26: pkg/client/auth.go:92:20: client.ScopeProjectID calls fmt.Sprintf, which eventually calls http2.headerFieldValueError.Error
#27: pkg/client/auth.go:92:20: client.ScopeProjectID calls fmt.Sprintf, which eventually calls http2.pseudoHeaderError.Error
#28: example/app/app.go:111:27: app.main calls http.ListenAndServe, which eventually calls http2.stickyErrWriter.Write
#29: pkg/client/auth.go:23:42: client.JWTAuthentication calls profile.NewJWTProfileTokenSource, which eventually calls http2.transportResponseBody.Close
#30: pkg/authentication/state.go:20:26: authentication.State.Encrypt calls crypto.EncryptAES, which eventually calls http2.transportResponseBody.Read
#31: pkg/client/auth.go:92:20: client.ScopeProjectID calls fmt.Sprintf, which eventually calls http2.writeData.String
Your code is affected by 1 vulnerability from 1 module.
This scan also found 2 vulnerabilities in packages you import and 1
vulnerability in modules you require, but your code doesn't appear to call these
vulnerabilities.
```
### PoC
No specific configuration required.
### Impact
Indirect package vulnerability. Users following example code might be impacted.
### References
- https://pkg.go.dev/vuln/GO-2024-2631
- https://pkg.go.dev/vuln/GO-2024-2611
- https://pkg.go.dev/vuln/GO-2024-2687
### Credits
Thanks to @helpisdev for reporting this. |