CVE-2020-14343

EPSS 6.0%CWE-20

Vexday Risk Score

3Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS —EPSS 6.0%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

09 Feb 2021Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

Affected products

n/a · PyYAML

Want to know if your infrastructure is exposed to this?

Talk to TrueHacking →

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