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CVE-2023-4785 (GCVE-0-2023-4785)

Vulnerability from cvelistv5 – Published: 2023-09-13 16:31 – Updated: 2026-01-12 15:34
VLAI
Title
Denial of Service in gRPC Core
Summary
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.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-25 18:02 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
Google gRPC Unaffected: 0 , < 1.23 (custom)
Unaffected: 1.57
Affected: 1.56.0 , ≤ 1.56.1 (custom)
Affected: 1.55.0 , ≤ 1.55.2 (custom)
Affected: 1.54.0 , ≤ 1.54.2 (custom)
Affected: 1.53.0 , ≤ 1.53.1 (custom)
guessed Create a notification for this product.
grpc grpc Affected: 0 , < 1.23 (custom)
Affected: 1.57
Affected: 1.56.0 , ≤ 1.56.1 (custom)
Affected: 1.55.0 , ≤ 155.2 (custom)
Affected: 1.54.0 , ≤ 1.54.2 (custom)
Affected: 1.53.0 , ≤ 1.53.1 (custom)
    cpe:2.3:a:grpc:grpc:*:*:*:*:*:*:*:*
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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.