Vulnerability identifier: #VU82653

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-4785

CWE-ID: CWE-400

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
gRPC
Server applications / Frameworks for developing and running applications

Vendor:

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to lack of error handling in the TCP server in Google's gRPC. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack by initiating a significant number of connections with the server.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

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External links
http://github.com/grpc/grpc/pull/33670
http://github.com/grpc/grpc/pull/33672
http://github.com/grpc/grpc/pull/33656
http://github.com/grpc/grpc/pull/33667
http://github.com/grpc/grpc/pull/33669

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.