CVE-2021-36154 Information

Description

HTTP2ToRawGRPCServerCodec in gRPC Swift 1.1.1 and earlier allows remote attackers to deny service via the delivery of many small messages within a single HTTP/2 frame leading to Uncontrolled Recursion and stack consumption.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35274 https://github.com/grpc/grpc-swift/security/advisories/GHSA-4rhq-vq24-88gw https://github.com/grpc/grpc-swift/releases

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5