NetSight
high7.5

CVE-2022-24777

Denial of Service via reachable assertion

Impact

A grpc-swift server is vulnerable to a denial of service attack via a reachable assertion. This was due to incorrect logic when handling `GOAWAY` frames. The attack is low-effort: it takes very little resources to construct and send the required sequence of frames. The impact on availability is high as the server will crash, dropping all in flight connections and requests. The issue was discovered by automated fuzz testing and is resolved by fixing the relevant state handling code.

Affected packages

EcosystemPackageAffectedFixed in
swiftgithub.com/grpc/grpc-swift< 1.7.21.7.2

Affected products

VendorProductAffected versions
LinuxfoundationGrpc Swift
before 1.7.2

Weakness classification

References