CVE-2023-4967 (GCVE-0-2023-4967)
Vulnerability from cvelistv5 – Published: 2023-10-27 18:01 – Updated: 2025-02-27 20:39
VLAI
EPSS
VEX
Title
Denial of service
Summary
Denial of Service in NetScaler ADC and NetScaler Gateway when configured as a Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) or AAA Virtual Server
Severity
8.2 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-02-26 21:50 UTC
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Cloud Software Group | NetScaler ADC |
Affected:
14.1 , < 8.50
(patch)
Affected: 13.1 , < 49.15 (patch) Affected: 13.0 , < 92.19 (patch) Affected: 13.1-FIPS , < 37.164 (patch) Affected: 12.1-FIPS , < 55.300 (patch) Affected: 12.1-NDcPP , < 55.300 (patch) |
guessed | |
| Cloud Software Group | NetScaler Gateway |
Affected:
14.1 , < 8.50
(patch)
Affected: 13.1 , < 49.15 (patch) Affected: 13.0 , < 92.19 (patch) |
guessed |
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"product": "NetScaler Gateway",
"vendor": "Cloud Software Group",
"versions": [
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"lessThan": "8.50",
"status": "affected",
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{
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}
],
"value": "Denial of Service in NetScaler ADC and NetScaler Gateway when configured as a Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) or AAA Virtual Server"
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"metrics": [
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"scope": "UNCHANGED",
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],
"providerMetadata": {
"dateUpdated": "2023-10-27T18:01:59.707Z",
"orgId": "e437aed5-38e0-4fa3-a98b-cb73e7acaec6",
"shortName": "Citrix"
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"references": [
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"url": "https://support.citrix.com/article/CTX579459/"
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"discovery": "UNKNOWN"
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"title": "Denial of service",
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"datePublished": "2023-10-27T18:01:59.707Z",
"dateReserved": "2023-09-14T15:51:24.455Z",
"dateUpdated": "2025-02-27T20:39:19.338Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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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.
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