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CVE-2023-40534 (GCVE-0-2023-40534)

Vulnerability from cvelistv5 – Published: 2023-10-10 12:32 – Updated: 2024-09-19 13:48
VLAI
Title
BIG-IP HTTP/2 vulnerability
Summary
When a client-side HTTP/2 profile and the HTTP MRF Router option are enabled for a virtual server, and an iRule using the HTTP_REQUEST event or Local Traffic Policy are associated with the virtual server, undisclosed requests can cause TMM to terminate.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
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 2024-09-19 13:48 UTC
CWE
  • CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
References
Impacted products
Vendor Product Version CPE status
F5 BIG-IP Affected: 17.1.0 , < 17.1.0.3.0.23.4-ENG (semver)
Affected: 16.1.0 , < 16.1.4.1.0.13.5-ENG (semver)
Unaffected: 15.1.0 , < * (semver)
Unaffected: 14.1.0 , < * (semver)
Unaffected: 13.1.0 , < * (semver)
guessed Create a notification for this product.
F5 BIG-IP Next SPK Affected: 1.6.0 , < * (semver)
guessed Create a notification for this product.
Date Public
2023-10-18 14:00
Credits
F5
Show details on NVD website
To clipboard 

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    "redhat_vex": {
      "current_release_date": "2025-05-28T23:05:19+00:00",
      "cve": "CVE-2023-40534",
      "id": "CVE-2023-40534",
      "initial_release_date": "2023-10-18T14:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "BIG-IP HTTP/2 vulnerability",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-40534.json",
      "version": "3"
    },
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      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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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.