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.

CVSS v3.0 9.8 CRITICAL
CVSS v2.0 10.0 HIGH

9.8^/10

CVSS v3.0 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

10.0^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:C/I:C/A:C

Exploitability : 10.0 / Impact : 10.0

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://bugzilla.redhat.com/show_bug.cgi?id=1860466	Issue Tracking Third Party Advisory
https://www.oracle.com/security-alerts/cpuapr2022.html	Patch Third Party Advisory
https://www.oracle.com/security-alerts/cpujul2022.html	Patch Third Party Advisory

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Configurations

Configuration 1 (hide)

cpe:2.3:a:pyyaml:pyyaml:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:a:oracle:communications_cloud_native_core_network_function_cloud_native_environment:22.1.0:::::::*
	cpe:2.3:a:oracle:communications_cloud_native_core_network_function_cloud_native_environment:1.10.0:::::::*

Information

Published : 2021-02-09 13:15

Updated : 2022-12-06 13:45

NVD link : CVE-2020-14343

Mitre link : CVE-2020-14343

JSON object : View

CWE

CWE-20

Improper Input Validation

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Products Affected

pyyaml

pyyaml

oracle

communications_cloud_native_core_network_function_cloud_native_environment

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