CVE-2018-18508 (GCVE-0-2018-18508)
Vulnerability from cvelistv5 – Published: 2020-10-22 20:14 – Updated: 2024-08-05 11:08
VLAI
EPSS
VEX
Summary
In Network Security Services (NSS) before 3.36.7 and before 3.41.1, a malformed signature can cause a crash due to a null dereference, resulting in a Denial of Service.
Severity
6.5 (Medium)
CWE
- Denial of Service through malformed signatures
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://developer.mozilla.org/en-US/docs/Mozilla/… | x_refsource_MISC |
| https://developer.mozilla.org/en-US/docs/Mozilla/… | x_refsource_MISC |
| https://cert-portal.siemens.com/productcert/pdf/s… | x_refsource_CONFIRM |
| https://us-cert.cisa.gov/ics/advisories/icsa-21-040-04 | x_refsource_MISC |
Impacted products
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"lastModified": "2024-11-21T03:56:04.393",
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Advisory\"]},{\"url\":\"https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.41.1_release_notes\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Release Notes\",\"Vendor Advisory\"]},{\"url\":\"https://us-cert.cisa.gov/ics/advisories/icsa-21-040-04\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\",\"US Government Resource\"]}]}}",
"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2026-06-27T02:20:10+00:00",
"cve": "CVE-2018-18508",
"id": "CVE-2018-18508",
"initial_release_date": "2018-01-01T00:00:00+00:00",
"product_status:fixed": "105",
"product_status:known_affected": "20",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "nss: NULL pointer dereference in several CMS functions resulting in a denial of service",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2018/cve-2018-18508.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "moderate",
"current_release_date": "2026-09-08T00:24:57Z",
"cve": "CVE-2018-18508",
"id": "CVE-2018-18508",
"initial_release_date": "2023-02-15T04:22:38Z",
"product_status:known_affected": "370",
"product_status:known_not_affected": "489",
"product_status:recommended": "1059",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2018-18508",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2018-18508.json",
"version": "51"
}
}
}
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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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