fkie_cve-2020-1747
Vulnerability from fkie_nvd
Published
2020-03-24 15:15
Modified
2024-11-21 05:11
Severity ?
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
A vulnerability was discovered in the PyYAML library in versions before 5.3.1, 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. An attacker could use this flaw to execute arbitrary code on the system by abusing the python/object/new constructor.
References
Impacted products
Vendor | Product | Version | |
---|---|---|---|
pyyaml | pyyaml | * | |
fedoraproject | fedora | 30 | |
fedoraproject | fedora | 31 | |
fedoraproject | fedora | 32 | |
fedoraproject | fedora | 33 | |
opensuse | leap | 15.1 | |
oracle | communications_cloud_native_core_network_function_cloud_native_environment | 22.1.0 |
{ configurations: [ { nodes: [ { cpeMatch: [ { criteria: "cpe:2.3:a:pyyaml:pyyaml:*:*:*:*:*:*:*:*", matchCriteriaId: "CF3AB645-B02B-41E0-B2E7-6AAC11ADDB34", versionEndExcluding: "5.3.1", versionStartIncluding: "5.1", vulnerable: true, }, ], negate: false, operator: "OR", }, ], }, { nodes: [ { cpeMatch: [ { criteria: "cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*", matchCriteriaId: "97A4B8DF-58DA-4AB6-A1F9-331B36409BA3", vulnerable: true, }, { criteria: "cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*", matchCriteriaId: "80F0FA5D-8D3B-4C0E-81E2-87998286AF33", vulnerable: true, }, { criteria: "cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*", matchCriteriaId: "36D96259-24BD-44E2-96D9-78CE1D41F956", vulnerable: true, }, { criteria: "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*", matchCriteriaId: "E460AA51-FCDA-46B9-AE97-E6676AA5E194", vulnerable: true, }, ], negate: false, operator: "OR", }, ], }, { nodes: [ { cpeMatch: [ { criteria: "cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*", matchCriteriaId: "B620311B-34A3-48A6-82DF-6F078D7A4493", vulnerable: true, }, ], negate: false, operator: "OR", }, ], }, { nodes: [ { cpeMatch: [ { criteria: "cpe:2.3:a:oracle:communications_cloud_native_core_network_function_cloud_native_environment:22.1.0:*:*:*:*:*:*:*", matchCriteriaId: "04E6C8E9-2024-496C-9BFD-4548A5B44E2E", vulnerable: true, }, ], negate: false, operator: "OR", }, ], }, ], cveTags: [], descriptions: [ { lang: "en", value: "A vulnerability was discovered in the PyYAML library in versions before 5.3.1, 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. An attacker could use this flaw to execute arbitrary code on the system by abusing the python/object/new constructor.", }, { lang: "es", value: "Se descubrió una vulnerabilidad en la biblioteca PyYAML versiones anteriores a 5.3.1, donde es susceptible a una ejecución de código arbitraria cuando procesa archivos YAML no seguros por medio del método full_load o con el cargador FullLoader. Las aplicaciones que usan la biblioteca para procesar entradas no seguras pueden ser vulnerables a este fallo. Un atacante podría usar este fallo para ejecutar código arbitrario en el sistema al violar el constructor python/object/new.", }, ], id: "CVE-2020-1747", lastModified: "2024-11-21T05:11:17.887", metrics: { cvssMetricV2: [ { acInsufInfo: false, baseSeverity: "HIGH", cvssData: { accessComplexity: "LOW", accessVector: "NETWORK", authentication: "NONE", availabilityImpact: "COMPLETE", baseScore: 10, confidentialityImpact: "COMPLETE", integrityImpact: "COMPLETE", vectorString: "AV:N/AC:L/Au:N/C:C/I:C/A:C", version: "2.0", }, exploitabilityScore: 10, impactScore: 10, obtainAllPrivilege: false, obtainOtherPrivilege: false, obtainUserPrivilege: false, source: "nvd@nist.gov", type: "Primary", userInteractionRequired: false, }, ], 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: "secalert@redhat.com", type: "Secondary", }, { 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: "2020-03-24T15:15:12.293", references: [ { source: "secalert@redhat.com", tags: [ "Mailing List", "Third Party Advisory", ], url: "http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00017.html", }, { source: "secalert@redhat.com", tags: [ "Mailing List", "Third Party Advisory", ], url: "http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00017.html", }, { source: "secalert@redhat.com", tags: [ "Issue Tracking", "Patch", "Third Party Advisory", ], url: "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1747", }, { source: "secalert@redhat.com", tags: [ "Patch", "Third Party Advisory", ], url: "https://github.com/yaml/pyyaml/pull/386", }, { source: "secalert@redhat.com", url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7PPAS6C4SZRDQLR7C22A5U3QOLXY33JX/", }, { source: "secalert@redhat.com", url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K5HEPD7LEVDPCITY5IMDYWXUMX37VFMY/", }, { source: "secalert@redhat.com", url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MMQXSZXNJT6ERABJZAAICI3DQSQLCP3D/", }, { source: "secalert@redhat.com", url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WORRFHPQVAFKKXXWLSSW6XKUYLWM6CSH/", }, { source: "secalert@redhat.com", url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZBJA3SGNJKCAYPSHOHWY3KBCWNM5NYK2/", }, { source: "secalert@redhat.com", tags: [ "Patch", "Third Party Advisory", ], url: "https://www.oracle.com/security-alerts/cpujul2022.html", }, { source: "af854a3a-2127-422b-91ae-364da2661108", tags: [ "Mailing List", "Third Party Advisory", ], url: "http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00017.html", }, { source: "af854a3a-2127-422b-91ae-364da2661108", tags: [ "Mailing List", "Third Party Advisory", ], url: "http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00017.html", }, { source: "af854a3a-2127-422b-91ae-364da2661108", tags: [ "Issue Tracking", "Patch", "Third Party Advisory", ], url: "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1747", }, { source: "af854a3a-2127-422b-91ae-364da2661108", tags: [ "Patch", "Third Party Advisory", ], url: "https://github.com/yaml/pyyaml/pull/386", }, { source: "af854a3a-2127-422b-91ae-364da2661108", url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7PPAS6C4SZRDQLR7C22A5U3QOLXY33JX/", }, { source: "af854a3a-2127-422b-91ae-364da2661108", url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K5HEPD7LEVDPCITY5IMDYWXUMX37VFMY/", }, { source: "af854a3a-2127-422b-91ae-364da2661108", url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MMQXSZXNJT6ERABJZAAICI3DQSQLCP3D/", }, { source: "af854a3a-2127-422b-91ae-364da2661108", url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WORRFHPQVAFKKXXWLSSW6XKUYLWM6CSH/", }, { source: "af854a3a-2127-422b-91ae-364da2661108", url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZBJA3SGNJKCAYPSHOHWY3KBCWNM5NYK2/", }, { source: "af854a3a-2127-422b-91ae-364da2661108", tags: [ "Patch", "Third Party Advisory", ], url: "https://www.oracle.com/security-alerts/cpujul2022.html", }, ], sourceIdentifier: "secalert@redhat.com", vulnStatus: "Modified", weaknesses: [ { description: [ { lang: "en", value: "CWE-20", }, ], source: "secalert@redhat.com", type: "Primary", }, { description: [ { lang: "en", value: "CWE-20", }, ], source: "nvd@nist.gov", type: "Secondary", }, ], }
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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.
- 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.