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CVE-2022-28948

Published: 19 May 2022

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

Notes

AuthorNote
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

Priority

Medium

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
golang-gopkg-yaml.v3
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

impish Ignored
(end of life)
jammy Needs triage

kinetic Not vulnerable
(3.0.1-1)
lunar Not vulnerable
(3.0.1-1)
mantic Not vulnerable
(3.0.1-1)
trusty Does not exist

upstream
Released (3.0.1-1)
xenial Does not exist

Patches:
upstream: https://github.com/go-yaml/yaml/commit/8f96da9f5d5eff988554c1aae1784627c4bf6754

golang-goyaml
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

impish Does not exist

jammy Does not exist

kinetic Does not exist

lunar Does not exist

mantic Does not exist

trusty Does not exist

upstream Not vulnerable
(v3 only)
xenial Not vulnerable
(v3 only)
golang-yaml.v2
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(v3 only)
focal Not vulnerable
(v3 only)
impish Not vulnerable
(v3 only)
jammy Not vulnerable
(v3 only)
kinetic Not vulnerable
(v3 only)
lunar Not vulnerable
(v3 only)
mantic Not vulnerable
(v3 only)
trusty Does not exist

upstream Not vulnerable
(v3 only)
xenial Not vulnerable
(v3 only)
snapd
Launchpad, Ubuntu, Debian
bionic Needed

focal Needed

impish Ignored
(end of life)
jammy Needed

kinetic Ignored
(end of life, was needs-triage)
lunar Ignored
(end of life, was needed)
mantic Needed

trusty Does not exist

upstream Pending
(2.60.2)
xenial Needs triage

Patches:

upstream: https://github.com/snapcore/snapd/pull/12959

Severity score breakdown

Parameter Value
Base score 7.5
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