GSD-2020-36476
Vulnerability from gsd - Updated: 2023-12-13 01:21Details
An issue was discovered in Mbed TLS before 2.24.0 (and before 2.16.8 LTS and before 2.7.17 LTS). There is missing zeroization of plaintext buffers in mbedtls_ssl_read to erase unused application data from memory.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2020-36476",
"description": "An issue was discovered in Mbed TLS before 2.24.0 (and before 2.16.8 LTS and before 2.7.17 LTS). There is missing zeroization of plaintext buffers in mbedtls_ssl_read to erase unused application data from memory.",
"id": "GSD-2020-36476",
"references": [
"https://www.suse.com/security/cve/CVE-2020-36476.html"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2020-36476"
],
"details": "An issue was discovered in Mbed TLS before 2.24.0 (and before 2.16.8 LTS and before 2.7.17 LTS). There is missing zeroization of plaintext buffers in mbedtls_ssl_read to erase unused application data from memory.",
"id": "GSD-2020-36476",
"modified": "2023-12-13T01:21:55.717374Z",
"schema_version": "1.4.0"
}
},
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"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "n/a",
"version": {
"version_data": [
{
"version_affected": "?",
"version_value": "n/a"
}
]
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}
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}
]
},
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"references": {
"reference_data": [
{
"name": "https://github.com/ARMmbed/mbedtls/releases/tag/v2.7.17",
"refsource": "MISC",
"url": "https://github.com/ARMmbed/mbedtls/releases/tag/v2.7.17"
},
{
"name": "https://github.com/ARMmbed/mbedtls/releases/tag/v2.16.8",
"refsource": "MISC",
"url": "https://github.com/ARMmbed/mbedtls/releases/tag/v2.16.8"
},
{
"name": "https://github.com/ARMmbed/mbedtls/releases/tag/v2.24.0",
"refsource": "MISC",
"url": "https://github.com/ARMmbed/mbedtls/releases/tag/v2.24.0"
},
{
"name": "https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html",
"refsource": "MISC",
"url": "https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html"
},
{
"name": "https://lists.debian.org/debian-lts-announce/2021/11/msg00021.html",
"refsource": "MISC",
"url": "https://lists.debian.org/debian-lts-announce/2021/11/msg00021.html"
}
]
}
},
"nvd.nist.gov": {
"configurations": {
"CVE_data_version": "4.0",
"nodes": [
{
"children": [],
"cpe_match": [
{
"cpe23Uri": "cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndExcluding": "2.7.17",
"vulnerable": true
},
{
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"cpe_name": [],
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"versionStartIncluding": "2.8.0",
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},
{
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"cpe_name": [],
"versionEndExcluding": "2.24.0",
"versionStartIncluding": "2.17.0",
"vulnerable": true
}
],
"operator": "OR"
},
{
"children": [],
"cpe_match": [
{
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"cpe_name": [],
"vulnerable": true
},
{
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"cpe_name": [],
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"description": {
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"value": "An issue was discovered in Mbed TLS before 2.24.0 (and before 2.16.8 LTS and before 2.7.17 LTS). There is missing zeroization of plaintext buffers in mbedtls_ssl_read to erase unused application data from memory."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "en",
"value": "CWE-212"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://github.com/ARMmbed/mbedtls/releases/tag/v2.16.8",
"refsource": "MISC",
"tags": [
"Release Notes",
"Third Party Advisory"
],
"url": "https://github.com/ARMmbed/mbedtls/releases/tag/v2.16.8"
},
{
"name": "https://github.com/ARMmbed/mbedtls/releases/tag/v2.24.0",
"refsource": "MISC",
"tags": [
"Release Notes",
"Third Party Advisory"
],
"url": "https://github.com/ARMmbed/mbedtls/releases/tag/v2.24.0"
},
{
"name": "https://github.com/ARMmbed/mbedtls/releases/tag/v2.7.17",
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"tags": [
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],
"url": "https://github.com/ARMmbed/mbedtls/releases/tag/v2.7.17"
},
{
"name": "[debian-lts-announce] 20211123 [SECURITY] [DLA 2826-1] mbedtls security update",
"refsource": "MLIST",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"url": "https://lists.debian.org/debian-lts-announce/2021/11/msg00021.html"
},
{
"name": "[debian-lts-announce] 20221225 [SECURITY] [DLA 3249-1] mbedtls security update",
"refsource": "MLIST",
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"url": "https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html"
}
]
}
},
"impact": {
"baseMetricV2": {
"acInsufInfo": false,
"cvssV2": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "NONE",
"baseScore": 5.0,
"confidentialityImpact": "NONE",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N",
"version": "2.0"
},
"exploitabilityScore": 10.0,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"severity": "MEDIUM",
"userInteractionRequired": false
},
"baseMetricV3": {
"cvssV3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 3.6
}
},
"lastModifiedDate": "2023-01-11T17:01Z",
"publishedDate": "2021-08-23T02:15Z"
}
}
}
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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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