CVE-2022-1471

Name	CVE-2022-1471
Description	SnakeYaml's Constructor() class does not restrict types which can be instantiated during deserialization. Deserializing yaml content provided by an attacker can lead to remote code execution. We recommend using SnakeYaml's SafeConsturctor when parsing untrusted content to restrict deserialization. We recommend upgrading to version 2.0 and beyond.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
snakeyaml (PTS)	jessie, jessie (lts)	1.12-2+deb8u1	vulnerable
	stretch (lts), stretch	1.17-1+deb9u1	vulnerable
	buster (security), buster, buster (lts)	1.23-1+deb10u1	vulnerable
	bullseye	1.28-1+deb11u2	vulnerable
	sid, trixie, bookworm	1.33-2	vulnerable

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
snakeyaml	source	(unstable)	(unfixed)	unimportant

https://github.com/google/security-research/security/advisories/GHSA-mjmj-j48q-9wg2