Vulnerability Details CVE-2020-14343
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.146
EPSS Ranking 94.2%
CVSS Severity
CVSS v3 Score 9.8
CVSS v2 Score 10.0
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1860466
- https://github.com/SeldonIO/seldon-core/issues/2252
- https://github.com/yaml/pyyaml/issues/420
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://www.oracle.com/security-alerts/cpujul2022.html
- https://bugzilla.redhat.com/show_bug.cgi?id=1860466
- https://github.com/SeldonIO/seldon-core/issues/2252
- https://github.com/yaml/pyyaml/issues/420
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://www.oracle.com/security-alerts/cpujul2022.html
Products affected by CVE-2020-14343
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Oracle » Communications Cloud Native Core Network Function Cloud Native Environment » Version: 1.10.0cpe:2.3:a:oracle:communications_cloud_native_core_network_function_cloud_native_environment:1.10.0
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Oracle » Communications Cloud Native Core Network Function Cloud Native Environment » Version: 22.1.0cpe:2.3:a:oracle:communications_cloud_native_core_network_function_cloud_native_environment:22.1.0
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cpe:2.3:a:pyyaml:pyyaml:5.1
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cpe:2.3:a:pyyaml:pyyaml:5.1.1
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cpe:2.3:a:pyyaml:pyyaml:5.1.2
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cpe:2.3:a:pyyaml:pyyaml:5.2
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cpe:2.3:a:pyyaml:pyyaml:5.3
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cpe:2.3:a:pyyaml:pyyaml:5.3.1