gsd-2020-14343
Vulnerability from gsd
Modified
2023-12-13 01:22
Details
A vulnerability was discovered in the PyYAML library in versions before 5.4, where it is susceptible to arbitrary code execution when it processes untrusted YAML files through the full_load method or with the FullLoader loader. Applications that use the library to process untrusted input may be vulnerable to this flaw. This flaw allows an attacker to execute arbitrary code on the system by abusing the python/object/new constructor. This flaw is due to an incomplete fix for CVE-2020-1747.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2020-14343",
"description": "A vulnerability was discovered in the PyYAML library in versions before 5.4, where it is susceptible to arbitrary code execution when it processes untrusted YAML files through the full_load method or with the FullLoader loader. Applications that use the library to process untrusted input may be vulnerable to this flaw. This flaw allows an attacker to execute arbitrary code on the system by abusing the python/object/new constructor. This flaw is due to an incomplete fix for CVE-2020-1747.",
"id": "GSD-2020-14343",
"references": [
"https://www.suse.com/security/cve/CVE-2020-14343.html",
"https://access.redhat.com/errata/RHSA-2021:4702",
"https://access.redhat.com/errata/RHSA-2021:2583",
"https://ubuntu.com/security/CVE-2020-14343",
"https://advisories.mageia.org/CVE-2020-14343.html",
"https://security.archlinux.org/CVE-2020-14343",
"https://linux.oracle.com/cve/CVE-2020-14343.html"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
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"id": "GSD-2020-14343",
"modified": "2023-12-13T01:22:00.419772Z",
"schema_version": "1.4.0"
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"affected_versions": "All versions starting from 5.1 before 5.4",
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"cwe_ids": [
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"date": "2021-09-29",
"description": "A vulnerability was discovered in the PyYAML library, where it is susceptible to arbitrary code execution when it processes untrusted YAML files through the `full_load` method or with the `FullLoader` loader. Applications that use the library to process untrusted input may be vulnerable to this flaw. This flaw allows an attacker to execute arbitrary code on the system by abusing the `python/object/new` constructor. This flaw is due to an incomplete fix for CVE-2020-1747.",
"fixed_versions": [
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],
"identifier": "CVE-2020-14343",
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"package_slug": "pypi/PyYAML",
"pubdate": "2021-02-09",
"solution": "Upgrade to version 5.4 or above.",
"title": "Improper Input Validation",
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"uuid": "ef6843ae-ccfb-4ba7-9c9b-65310b620cd2"
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"impact": {
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"cvssV2": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "COMPLETE",
"baseScore": 10.0,
"confidentialityImpact": "COMPLETE",
"integrityImpact": "COMPLETE",
"vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C",
"version": "2.0"
},
"exploitabilityScore": 10.0,
"impactScore": 10.0,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"severity": "HIGH",
"userInteractionRequired": false
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"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
}
},
"lastModifiedDate": "2023-07-06T18:15Z",
"publishedDate": "2021-02-09T21:15Z"
}
}
}
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- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- 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.