Your submission was sent successfully! Close

CVE-2020-1747

Published: 24 March 2020

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.

Notes

AuthorNote
mdeslaur
FullLoader was introduced in 5.1. FullLoader should not be used
on untrusted input, setting priority to low.
Priority

Low

CVSS 3 base score: 9.8

Status

Package Release Status
pyyaml
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(code not present)
eoan Ignored
(reached end-of-life)
focal Not vulnerable
(5.3-2)
precise Not vulnerable
(code not present)
trusty Not vulnerable
(code not present)
upstream Needs triage

xenial Not vulnerable
(code not present)