CVE-2023-32731
published 2023-06-09CVE-2023-32731: 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…
high7.5CVSS 3.1
AVNACLPRNUINSUCHINAN
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
Affected
9 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | grpc | — | — |
| grpc | 1.53 – 1.54 | — | |
| grpc | grpc | >= 1.53.0 < 1.55.0 | 1.55.0 |
| grpc | grpc | >= 1.53.0 < 1.53.1 | 1.53.1 |
| grpc | grpc | >= 1.54.0 < 1.54.2 | 1.54.2 |
| msrc | azl3_grpc_1.42.0-7_on_azure_linux_3.0 | — | — |
| msrc | azl3_python-tensorboard_2.16.2-6_on_azure_linux_3.0 | — | — |
| msrc | azure_linux_3.0_arm | — | — |
| msrc | azure_linux_3.0_x64 | — | — |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
osv7.5HIGH