gsd-2020-16150
Vulnerability from gsd
Modified
2023-12-13 01:21
Details
A Lucky 13 timing side channel in mbedtls_ssl_decrypt_buf in library/ssl_msg.c in Trusted Firmware Mbed TLS through 2.23.0 allows an attacker to recover secret key information. This affects CBC mode because of a computed time difference based on a padding length.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2020-16150",
"description": "A Lucky 13 timing side channel in mbedtls_ssl_decrypt_buf in library/ssl_msg.c in Trusted Firmware Mbed TLS through 2.23.0 allows an attacker to recover secret key information. This affects CBC mode because of a computed time difference based on a padding length.",
"id": "GSD-2020-16150",
"references": [
"https://www.suse.com/security/cve/CVE-2020-16150.html",
"https://advisories.mageia.org/CVE-2020-16150.html",
"https://security.archlinux.org/CVE-2020-16150"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2020-16150"
],
"details": "A Lucky 13 timing side channel in mbedtls_ssl_decrypt_buf in library/ssl_msg.c in Trusted Firmware Mbed TLS through 2.23.0 allows an attacker to recover secret key information. This affects CBC mode because of a computed time difference based on a padding length.",
"id": "GSD-2020-16150",
"modified": "2023-12-13T01:21:46.124452Z",
"schema_version": "1.4.0"
}
},
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"STATE": "PUBLIC"
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"affects": {
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"product": {
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"product_name": "n/a",
"version": {
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"refsource": "MISC",
"url": "https://tls.mbed.org/tech-updates/security-advisories"
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{
"name": "https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html",
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"url": "https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html"
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{
"name": "https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2020-09-1",
"refsource": "MISC",
"url": "https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2020-09-1"
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"refsource": "MISC",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5OSOFUD6UTGTDDSQRS62BPXDU52I6PUA/"
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},
"gitlab.com": {
"advisories": [
{
"affected_range": "\u003c2.7.17||\u003e=2.8.0 \u003c2.16.8||\u003e=2.17.0 \u003c2.24.0",
"affected_versions": "All versions before 2.7.17, all versions starting from 2.8.0 before 2.16.8, all versions starting from 2.17.0 before 2.24.0",
"cvss_v2": "AV:L/AC:L/Au:N/C:P/I:N/A:N",
"cvss_v3": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
"cwe_ids": [
"CWE-1035",
"CWE-203",
"CWE-937"
],
"date": "2020-09-25",
"description": "A Lucky timing side channel in `mbedtls_ssl_decrypt_buf` in `library/ssl_msg.c` in Trusted Firmware Mbed TLS allows an attacker to recover secret key information. This affects CBC mode because of a computed time difference based on a padding length.",
"fixed_versions": [],
"identifier": "CVE-2020-16150",
"identifiers": [
"CVE-2020-16150"
],
"not_impacted": "",
"package_slug": "conan/mbedtls",
"pubdate": "2020-09-02",
"solution": "Unfortunately, there is no solution available yet.",
"title": "Information Exposure Through Discrepancy",
"urls": [
"https://nvd.nist.gov/vuln/detail/CVE-2020-16150",
"https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2020-09-1"
],
"uuid": "04134238-412e-425b-a421-11148ef8f7bf"
}
]
},
"nvd.nist.gov": {
"configurations": {
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"nodes": [
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"cpe_match": [
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"cpe_match": [
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"problemtype": {
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"references": {
"reference_data": [
{
"name": "https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2020-09-1",
"refsource": "CONFIRM",
"tags": [
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"url": "https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2020-09-1"
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},
"impact": {
"baseMetricV2": {
"acInsufInfo": false,
"cvssV2": {
"accessComplexity": "LOW",
"accessVector": "LOCAL",
"authentication": "NONE",
"availabilityImpact": "NONE",
"baseScore": 2.1,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "NONE",
"vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N",
"version": "2.0"
},
"exploitabilityScore": 3.9,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"severity": "LOW",
"userInteractionRequired": false
},
"baseMetricV3": {
"cvssV3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 3.6
}
},
"lastModifiedDate": "2023-02-27T18:03Z",
"publishedDate": "2020-09-02T16:15Z"
}
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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