CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
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