CVE-2023-4785: Denial of Service in gRPC Core

Published Sep 13, 2023
·
Updated

Denial of Service in gRPC Core

Other sources

Lack of error handling in the TCP server in Google's gRPC starting version 1.23 on posix-compatible platforms (ex. Linux) allows an attacker to cause a denial of service by initiating a significant number of connections with the server. Note that gRPC C++ Python, and Ruby are affected, but gRPC Java, and Go are NOT affected.

Affected Software

16 affected componentsFixes available
gRPC gRPC>=1.23.0<1.53.2
gRPC gRPC>=1.54.0<1.54.3
gRPC gRPC>=1.55.0<1.55.3
gRPC gRPC=1.56.0
pip/grpcio>=1.53.0<1.53.2
1.53.2
pip/grpcio>=1.54.0<1.54.3
1.54.3
pip/grpcio>=1.55.0<1.55.3
1.55.3
rubygems/grpc>=1.53.0<1.53.2
1.53.2
rubygems/grpc>=1.54.0<1.54.3
1.54.3
rubygems/grpc>=1.55.0<1.55.3
1.55.3
rubygems/grpc>=1.56.0<1.56.2
1.56.2
redhat/grpc<1.53.2
1.53.2
redhat/grpc<1.54.3
1.54.3
redhat/grpc<1.55.3
1.55.3
Microsoft azl3 grpc 1.42.0-7
Patch available
Microsoft azl3 grpc 1.62.0-2
Patch available

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade pip/grpcio to a version that resolves this vulnerability.

    Fixed in 1.53.2
  2. Upgrade

    Upgrade pip/grpcio to a version that resolves this vulnerability.

    Fixed in 1.54.3
  3. Upgrade

    Upgrade pip/grpcio to a version that resolves this vulnerability.

    Fixed in 1.55.3
  4. Upgrade

    Upgrade rubygems/grpc to a version that resolves this vulnerability.

    Fixed in 1.53.2
  5. Upgrade

    Upgrade rubygems/grpc to a version that resolves this vulnerability.

    Fixed in 1.54.3
  6. Upgrade

    Upgrade rubygems/grpc to a version that resolves this vulnerability.

    Fixed in 1.55.3
  7. Upgrade

    Upgrade rubygems/grpc to a version that resolves this vulnerability.

    Fixed in 1.56.2
  8. Upgrade

    Upgrade redhat/grpc to a version that resolves this vulnerability.

    Fixed in 1.53.2
  9. Upgrade

    Upgrade redhat/grpc to a version that resolves this vulnerability.

    Fixed in 1.54.3
  10. Upgrade

    Upgrade redhat/grpc to a version that resolves this vulnerability.

    Fixed in 1.55.3
  11. Upgrade

    Upgrade redhat/grpc to a version that resolves this vulnerability.

    Fixed in 1.56.2

Event History

Sep 13, 2023
CVE Published
via MITRE·04:31 PM
Data Sourced
via MITRE·04:31 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·05:15 PM
RemedyDescriptionSeverityWeaknessAffected Software
Advisory Published
via GitHub·06:31 PM
Sep 14, 2023
Data Sourced
via Red Hat·07:38 PM
DescriptionSeverityAffected Software
Jun 30, 2024
Data Sourced
via Microsoft·02:00 PM
DescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

1

What is CVE-2023-4785?

CVE-2023-4785 is a vulnerability in Google's gRPC library that allows an attacker to cause a denial of service by initiating a significant number of connections with the server.

2

Which platforms are affected by CVE-2023-4785?

CVE-2023-4785 affects posix-compatible platforms (e.g., Linux) where Google's gRPC version 1.23 or later is used.

3

What is the severity of CVE-2023-4785?

CVE-2023-4785 has a severity rating of 7.5 (high).

4

How can an attacker exploit CVE-2023-4785?

An attacker can exploit CVE-2023-4785 by initiating a significant number of connections with the gRPC server, causing a denial of service.

5

Are there any fixes available for CVE-2023-4785?

Yes, fixes for CVE-2023-4785 have been released. It is recommended to update to a patched version of Google's gRPC library to mitigate the vulnerability.

Company

Resources

Contact

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