Lack of error handling in the TCP server in Google's gRPC starting version 1.23 on posix-compatible platforms (ex. Linux) allows an attacker to cause a denial of service by initiating a significant number of connections with the server. Note that gRPC C++ Python, and Ruby are affected, but gRPC Java, and Go are NOT affected.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
High
Complete denial of service
CVSS Vector v3.1
Weakness Type (CWE)
Vulnerable Products 4
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Grpc Grpc
cpe:2.3:a:grpc:grpc:*:*:*:*:*:-:*:*
|
1.23.0
|
1.53.2
|
|
Grpc Grpc
cpe:2.3:a:grpc:grpc:*:*:*:*:*:-:*:*
|
1.54.0
|
1.54.3
|
|
Grpc Grpc
cpe:2.3:a:grpc:grpc:*:*:*:*:*:-:*:*
|
1.55.0
|
1.55.3
|
|
Grpc Grpc
cpe:2.3:a:grpc:grpc:1.56.0:*:*:*:*:-:*:*
|
— | — |
References 5
https://github.com/grpc/grpc/pull/33656
cve-coordination@google.com
https://github.com/grpc/grpc/pull/33667
cve-coordination@google.com
https://github.com/grpc/grpc/pull/33669
cve-coordination@google.com
https://github.com/grpc/grpc/pull/33670
cve-coordination@google.com
https://github.com/grpc/grpc/pull/33672
cve-coordination@google.com