CVE Published: 09/06/2023 |
CVE Updated: 26/09/2024 |
CVE Year: 2023 Source: Google |
Vendor: Google |
Product: gRPC Status : PUBLISHED
CVE-2023-32731 Description
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
Metrics
CVSS Version: 3.1 |
Base Score: 7.4 HIGH Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H