CVE-2022-28948

Description

An issue in the Unmarshal function in Go-Yaml v3 causes the program to crash when attempting to deserialize invalid input.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
snapd	25.10 questing	Fixed 2.63+24.10
	25.04 plucky	Fixed 2.63+24.10
	24.10 oracular	Fixed 2.63+24.10
	24.04 LTS noble	Fixed 2.62+24.04build1
	23.10 mantic	Ignored end of life, was needed
	23.04 lunar	Ignored end of life, was needed
	22.10 kinetic	Ignored end of life, was needs-triage
	22.04 LTS jammy	Fixed 2.63+22.04ubuntu0.1
	21.10 impish	Ignored end of life
	20.04 LTS focal	Fixed 2.63+20.04ubuntu0.1
	18.04 LTS bionic	Vulnerable
	16.04 LTS xenial	Needs evaluation
	14.04 LTS trusty	Not in release
golang-goyaml	25.10 questing	Not in release
	25.04 plucky	Not in release
	24.10 oracular	Not in release
	24.04 LTS noble	Not in release
	23.10 mantic	Not in release
	23.04 lunar	Not in release
	22.10 kinetic	Not in release
	22.04 LTS jammy	Not in release
	21.10 impish	Not in release
	20.04 LTS focal	Not in release
	18.04 LTS bionic	Not in release
	16.04 LTS xenial	Not affected
	14.04 LTS trusty	Not in release
golang-yaml.v2	25.10 questing	Not affected
	25.04 plucky	Not affected
	24.10 oracular	Not affected
	24.04 LTS noble	Not affected
	23.10 mantic	Not affected
	23.04 lunar	Not affected
	22.10 kinetic	Not affected
	22.04 LTS jammy	Not affected
	21.10 impish	Not affected
	20.04 LTS focal	Not affected
	18.04 LTS bionic	Not affected
	16.04 LTS xenial	Not affected
	14.04 LTS trusty	Not in release
golang-gopkg-yaml.v3	25.10 questing	Not affected
	25.04 plucky	Not affected
	24.10 oracular	Not affected
	24.04 LTS noble	Not affected
	23.10 mantic	Not affected
	23.04 lunar	Not affected
	22.10 kinetic	Not affected
	22.04 LTS jammy	Needs evaluation
	21.10 impish	Ignored end of life
	20.04 LTS focal	Not in release
	18.04 LTS bionic	Not in release
	16.04 LTS xenial	Not in release
	14.04 LTS trusty	Not in release

Notes

jdstrand

snapd contains an embedded copy of golang-goyaml

sbeattie

according to upstream, this likely only affects v3 implementations only PoC in revoked snyk report

mdeslaur

only affects yaml.v3, not yaml.v2

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
snapd	Upstream: https://github.com/snapcore/snapd/pull/12959
golang-gopkg-yaml.v3	Upstream: 8f96da9

Severity score breakdown

Parameter	Value
Base score	7.5 · High
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H