Denial of Service via reachable assertion in grpc-swift
CVE-2022-24777

7.5HIGH

Key Information:

Vendor

Grpc

Status
Grpc-swift
Vendor
CVE Published:
25 March 2022

What is CVE-2022-24777?

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.

Affected Version(s)

grpc-swift < 1.7.2

References

https://github.com/grpc/grpc-swift/security/advisories/GH...
x_refsource_CONFIRM
https://github.com/grpc/grpc-swift/commit/858f977f2a51fca...
x_refsource_MISC

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.