CVE-2022-24777 Information

Description

grpc-swift is the Swift language implementation of gRPC a remote procedure call (RPC) framework. Prior to version 1.7.2 a grpc-swift server is vulnerable to a denial of service attack via a reachable assertion. This is 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. This issue is fixed in version 1.7.2. There are currently no known workarounds.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

https://github.com/grpc/grpc-swift/security/advisories/GHSA-r6ww-5963-7r95 https://github.com/grpc/grpc-swift/commit/858f977f2a51fca2292f384cf7a108dc2e73a3bd

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5