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IP …
critical9.8

CVE-2020-1747

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 …

Impact

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.

Affected products

VendorProductAffected versions
PyyamlPyyaml
from 5.1 before 5.3.1
FedoraprojectFedora
Versions 30, 31, 32, 33
OpensuseLeap
Version 15.1
OracleCommunications Cloud Native Core Network Function Cloud Native Environment
Version 22.1.0

Weakness classification

CWE-20

References