SynopsisThe remote EulerOS host is missing a security update.
DescriptionAccording to the version of the PyYaml packages installed, the EulerOS installation on the remote host is affected by the following vulnerability :
- 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.(CVE-2020-1747)
Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
SolutionUpdate the affected PyYaml package.