CVE-2023-35784 (GCVE-0-2023-35784)
Vulnerability from cvelistv5 – Published: 2023-06-16 00:00 – Updated: 2024-12-17 17:05
VLAI
EPSS
VEX
Summary
A double free or use after free could occur after SSL_clear in OpenBSD 7.2 before errata 026 and 7.3 before errata 004, and in LibreSSL before 3.6.3 and 3.7.x before 3.7.3. NOTE: OpenSSL is not affected.
Severity
No CVSS data available.
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-12-17 17:05 UTC
CWE
- n/a
Assigner
References
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-02T16:30:45.381Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_transferred"
],
"url": "https://ftp.openbsd.org/pub/OpenBSD/patches/7.3/common/004_ssl.patch.sig"
},
{
"tags": [
"x_transferred"
],
"url": "https://ftp.openbsd.org/pub/OpenBSD/patches/7.2/common/026_ssl.patch.sig"
},
{
"tags": [
"x_transferred"
],
"url": "https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-3.6.3-relnotes.txt"
},
{
"tags": [
"x_transferred"
],
"url": "https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-3.7.3-relnotes.txt"
},
{
"tags": [
"x_transferred"
],
"url": "https://github.com/libressl/openbsd/commit/e42d8f4b21a8a498e2eabbffe4c7b7d4ef7cec54"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2023-35784",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-12-17T17:05:14.971673Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2024-12-17T17:05:30.289Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "A double free or use after free could occur after SSL_clear in OpenBSD 7.2 before errata 026 and 7.3 before errata 004, and in LibreSSL before 3.6.3 and 3.7.x before 3.7.3. NOTE: OpenSSL is not affected."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "n/a",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2023-11-06T21:01:37.616Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"url": "https://ftp.openbsd.org/pub/OpenBSD/patches/7.3/common/004_ssl.patch.sig"
},
{
"url": "https://ftp.openbsd.org/pub/OpenBSD/patches/7.2/common/026_ssl.patch.sig"
},
{
"url": "https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-3.6.3-relnotes.txt"
},
{
"url": "https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-3.7.3-relnotes.txt"
},
{
"url": "https://github.com/libressl/openbsd/commit/e42d8f4b21a8a498e2eabbffe4c7b7d4ef7cec54"
}
]
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2023-35784",
"datePublished": "2023-06-16T00:00:00.000Z",
"dateReserved": "2023-06-16T00:00:00.000Z",
"dateUpdated": "2024-12-17T17:05:30.289Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2023-35784",
"date": "2026-10-06",
"epss": "0.0094",
"percentile": "0.59663"
},
"fkie_nvd": {
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:openbsd:libressl:*:*:*:*:*:*:*:*",
"matchCriteriaId": "784B0777-194D-4E4A-874F-198BD201B508",
"versionEndExcluding": "3.6.3",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:libressl:*:*:*:*:*:*:*:*",
"matchCriteriaId": "0E68DCDD-212C-4EF0-AF5D-23CD66073680",
"versionEndExcluding": "3.7.3",
"versionStartIncluding": "3.7.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:openbsd:openbsd:7.2:*:*:*:*:*:*:*",
"matchCriteriaId": "6E6EC6AC-E2DE-4166-A762-AB6A88DF1C1E",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:openbsd:openbsd:7.3:*:*:*:*:*:*:*",
"matchCriteriaId": "3C8A4344-6ABE-4626-ADA4-3FA91F8D76C7",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "A double free or use after free could occur after SSL_clear in OpenBSD 7.2 before errata 026 and 7.3 before errata 004, and in LibreSSL before 3.6.3 and 3.7.x before 3.7.3. NOTE: OpenSSL is not affected."
}
],
"id": "CVE-2023-35784",
"lastModified": "2024-11-21T08:08:41.820",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 5.9,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2023-06-16T20:15:09.493",
"references": [
{
"source": "cve@mitre.org",
"tags": [
"Release Notes"
],
"url": "https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-3.6.3-relnotes.txt"
},
{
"source": "cve@mitre.org",
"tags": [
"Release Notes"
],
"url": "https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-3.7.3-relnotes.txt"
},
{
"source": "cve@mitre.org",
"tags": [
"Patch"
],
"url": "https://ftp.openbsd.org/pub/OpenBSD/patches/7.2/common/026_ssl.patch.sig"
},
{
"source": "cve@mitre.org",
"tags": [
"Patch"
],
"url": "https://ftp.openbsd.org/pub/OpenBSD/patches/7.3/common/004_ssl.patch.sig"
},
{
"source": "cve@mitre.org",
"url": "https://github.com/libressl/openbsd/commit/e42d8f4b21a8a498e2eabbffe4c7b7d4ef7cec54"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Release Notes"
],
"url": "https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-3.6.3-relnotes.txt"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Release Notes"
],
"url": "https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-3.7.3-relnotes.txt"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://ftp.openbsd.org/pub/OpenBSD/patches/7.2/common/026_ssl.patch.sig"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://ftp.openbsd.org/pub/OpenBSD/patches/7.3/common/004_ssl.patch.sig"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://github.com/libressl/openbsd/commit/e42d8f4b21a8a498e2eabbffe4c7b7d4ef7cec54"
}
],
"sourceIdentifier": "cve@mitre.org",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-415"
},
{
"lang": "en",
"value": "CWE-416"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"source": "cve@mitre.org"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:openbsd:libressl:*:*:*:*:*:*:*:*",
"matchCriteriaId": "784B0777-194D-4E4A-874F-198BD201B508",
"versionEndExcluding": "3.6.3",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:libressl:*:*:*:*:*:*:*:*",
"matchCriteriaId": "0E68DCDD-212C-4EF0-AF5D-23CD66073680",
"versionEndExcluding": "3.7.3",
"versionStartIncluding": "3.7.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:openbsd:openbsd:7.2:*:*:*:*:*:*:*",
"matchCriteriaId": "6E6EC6AC-E2DE-4166-A762-AB6A88DF1C1E",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:openbsd:openbsd:7.3:*:*:*:*:*:*:*",
"matchCriteriaId": "3C8A4344-6ABE-4626-ADA4-3FA91F8D76C7",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A double free or use after free could occur after SSL_clear in OpenBSD 7.2 before errata 026 and 7.3 before errata 004, and in LibreSSL before 3.6.3 and 3.7.x before 3.7.3. NOTE: OpenSSL is not affected."
}
],
"id": "CVE-2023-35784",
"lastModified": "2026-06-17T06:05:12.160",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 5.9,
"source": "nvd@nist.gov",
"type": "Primary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2023-35784",
"options": [
{
"exploitation": "none"
},
{
"automatable": "yes"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-12-17T17:05:14.971673Z",
"version": "2.0.3"
}
}
]
},
"published": "2023-06-16T20:15:09.493",
"references": [
{
"source": "cve@mitre.org",
"tags": [
"Release Notes"
],
"url": "https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-3.6.3-relnotes.txt"
},
{
"source": "cve@mitre.org",
"tags": [
"Release Notes"
],
"url": "https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-3.7.3-relnotes.txt"
},
{
"source": "cve@mitre.org",
"tags": [
"Patch"
],
"url": "https://ftp.openbsd.org/pub/OpenBSD/patches/7.2/common/026_ssl.patch.sig"
},
{
"source": "cve@mitre.org",
"tags": [
"Patch"
],
"url": "https://ftp.openbsd.org/pub/OpenBSD/patches/7.3/common/004_ssl.patch.sig"
},
{
"source": "cve@mitre.org",
"url": "https://github.com/libressl/openbsd/commit/e42d8f4b21a8a498e2eabbffe4c7b7d4ef7cec54"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Release Notes"
],
"url": "https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-3.6.3-relnotes.txt"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Release Notes"
],
"url": "https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-3.7.3-relnotes.txt"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://ftp.openbsd.org/pub/OpenBSD/patches/7.2/common/026_ssl.patch.sig"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://ftp.openbsd.org/pub/OpenBSD/patches/7.3/common/004_ssl.patch.sig"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://github.com/libressl/openbsd/commit/e42d8f4b21a8a498e2eabbffe4c7b7d4ef7cec54"
}
],
"sourceIdentifier": "cve@mitre.org",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-415"
},
{
"lang": "en",
"value": "CWE-416"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"current_release_date": "2026-03-27T11:29:43+00:00",
"cve": "CVE-2023-35784",
"id": "CVE-2023-35784",
"initial_release_date": "2023-01-01T00:00:00+00:00",
"product_status:known_not_affected": "1",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "CVE-2023-35784",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-35784.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "critical",
"current_release_date": "2025-02-16T06:16:22Z",
"cve": "CVE-2023-35784",
"id": "CVE-2023-35784",
"initial_release_date": "2023-06-20T01:13:21Z",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2023-35784",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2023-35784.json",
"version": "5"
},
"vulnrichment": {
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-02T16:30:45.381Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_transferred"
],
"url": "https://ftp.openbsd.org/pub/OpenBSD/patches/7.3/common/004_ssl.patch.sig"
},
{
"tags": [
"x_transferred"
],
"url": "https://ftp.openbsd.org/pub/OpenBSD/patches/7.2/common/026_ssl.patch.sig"
},
{
"tags": [
"x_transferred"
],
"url": "https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-3.6.3-relnotes.txt"
},
{
"tags": [
"x_transferred"
],
"url": "https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-3.7.3-relnotes.txt"
},
{
"tags": [
"x_transferred"
],
"url": "https://github.com/libressl/openbsd/commit/e42d8f4b21a8a498e2eabbffe4c7b7d4ef7cec54"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2023-35784",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-12-17T17:05:14.971673Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2024-12-17T17:05:24.254Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "A double free or use after free could occur after SSL_clear in OpenBSD 7.2 before errata 026 and 7.3 before errata 004, and in LibreSSL before 3.6.3 and 3.7.x before 3.7.3. NOTE: OpenSSL is not affected."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "n/a",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2023-11-06T21:01:37.616664",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"url": "https://ftp.openbsd.org/pub/OpenBSD/patches/7.3/common/004_ssl.patch.sig"
},
{
"url": "https://ftp.openbsd.org/pub/OpenBSD/patches/7.2/common/026_ssl.patch.sig"
},
{
"url": "https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-3.6.3-relnotes.txt"
},
{
"url": "https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-3.7.3-relnotes.txt"
},
{
"url": "https://github.com/libressl/openbsd/commit/e42d8f4b21a8a498e2eabbffe4c7b7d4ef7cec54"
}
]
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2023-35784",
"datePublished": "2023-06-16T00:00:00",
"dateReserved": "2023-06-16T00:00:00",
"dateUpdated": "2024-12-17T17:05:30.289Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
Loading…
Loading…
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.
Loading…
Loading…
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.
Loading…
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.
Loading…