Remote Denial of Service Vulnerability in gRPC Swift by Google
CVE-2021-36155

7.5HIGH

Key Information:

Vendor

Linux
Status
Grpc Swift
Vendor
CVE Published:
9 July 2021

What is CVE-2021-36155?

The LengthPrefixedMessageReader in gRPC Swift versions up to 1.1.0 has a security flaw that allows remote attackers to allocate buffers of arbitrary length. This vulnerability can lead to uncontrolled resource consumption on the server, potentially causing a denial of service and disrupting legitimate users' access to the service. It is important for users of gRPC Swift to update to the latest version to mitigate this risk.

References

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

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.