GMS-2023-5641: eventing-github vulnerable to denial of service caused by improper enforcement of the timeout on individual read operations

Impact

The eventing-github cluster-local server does not set ReadHeaderTimeout which could lead do a DDoS attack, where a large group of users send requests to the server causing the server to hang for long enough to deny it from being available to other users, also know as a Slowloris attack.

Patches

Fix in v1.12.1 and v1.11.3

Credits

The vulnerability was reported by Ada Logics during an ongoing security audit of Knative involving Ada Logics, the Knative maintainers, OSTIF and CNCF.