CVE-2021-36155 Information

Description

LengthPrefixedMessageReader in gRPC Swift 1.1.0 and earlier allocates buffers of arbitrary length which allows remote attackers to cause uncontrolled resource consumption and deny service.

CVSS Vector

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

Reference

https://github.com/grpc/grpc-swift/security/advisories/GHSA-rxmj-hg9v-vp3p https://github.com/grpc/grpc-swift/releases https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35303

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