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CVE-2023-32731
Good to know:
Date: June 9, 2023
When gRPC HTTP2 stack raised a header size exceeded error, it skipped parsing the rest of the HPACK frame. This caused any HPACK table mutations to also be skipped, resulting in a desynchronization of HPACK tables between sender and receiver. If leveraged, say, between a proxy and a backend, this could lead to requests from the proxy being interpreted as containing headers from different proxy clients - leading to an information leak that can be used for privilege escalation or data exfiltration. We recommend upgrading beyond the commit contained in https://github.com/grpc/grpc/pull/33005 https://github.com/grpc/grpc/pull/33005
Language: Ruby
Severity Score
Related Resources (10)
Severity Score
Weakness Type (CWE)
Expected Behavior Violation
CWE-440Top Fix
Upgrade Version
Upgrade to version grpcio - 1.53.1;grpcio - 1.54.2;grpc - 1.54.2;grpc - 1.53.1;io.grpc:grpc-protobuf:1.54.2
CVSS v3.1
| Base Score: |
|
|---|---|
| Attack Vector (AV): | NETWORK |
| Attack Complexity (AC): | HIGH |
| Privileges Required (PR): | NONE |
| User Interaction (UI): | NONE |
| Scope (S): | UNCHANGED |
| Confidentiality (C): | HIGH |
| Integrity (I): | NONE |
| Availability (A): | HIGH |