CVE-2017-18342

EUVD-2018-0128
In PyYAML before 5.1, the yaml.load() API could execute arbitrary code if used with untrusted data. The load() function has been deprecated in version 5.1 and the 'UnsafeLoader' has been introduced for backward compatibility with the function.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 88%
Affected Products (NVD)
VendorProductVersion
pyyamlpyyaml
𝑥
< 5.1
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
pyyaml
bookworm
6.0-3
fixed
bullseye
5.3.1-5
fixed
sid
6.0.2-1
fixed
trixie
6.0.2-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
pyyaml
bionic
ignored
cosmic
ignored
disco
ignored
eoan
not-affected
focal
not-affected
trusty
ignored
xenial
ignored
Common Weakness Enumeration
References
https://github.com/marshmallow-code/apispec/issues/278
https://github.com/yaml/pyyaml/blob/master/CHANGES
https://github.com/yaml/pyyaml/issues/193
https://github.com/yaml/pyyaml/pull/74
https://github.com/yaml/pyyaml/wiki/PyYAML-yaml.load%28input%29-Deprecation
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JEX7IPV5P2QJITAMA5Z63GQCZA5I6NVZ/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KSQQMRUQSXBSUXLCRD3TSZYQ7SEZRKCE/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M6JCFGEIEOFMWWIXGHSELMKQDD4CV2BA/
https://security.gentoo.org/glsa/202003-45
https://github.com/marshmallow-code/apispec/issues/278
https://github.com/yaml/pyyaml/blob/master/CHANGES
https://github.com/yaml/pyyaml/issues/193
https://github.com/yaml/pyyaml/pull/74
https://github.com/yaml/pyyaml/wiki/PyYAML-yaml.load%28input%29-Deprecation
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JEX7IPV5P2QJITAMA5Z63GQCZA5I6NVZ/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KSQQMRUQSXBSUXLCRD3TSZYQ7SEZRKCE/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M6JCFGEIEOFMWWIXGHSELMKQDD4CV2BA/
https://security.gentoo.org/glsa/202003-45