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CVE-2021-4235

Published: 27 December 2022

Due to unbounded alias chasing, a maliciously crafted YAML file can cause the system to consume significant system resources. If parsing user input, this may be used as a denial of service vector.

Notes

AuthorNote
leosilva
kubernates is in fact a kubernetes installer
that calls snap, not the package it self.

Priority

Medium

Cvss 3 Severity Score

5.5

Score breakdown

Status

Package Release Status
golang-github-coreos-discovery-etcd-io
Launchpad, Ubuntu, Debian
xenial Ignored
(end of standard support)
bionic Does not exist

focal Needs triage

jammy Needs triage

trusty Ignored
(end of standard support)
upstream Needs triage

kinetic Ignored
(end of life, was needs-triage)
mantic Needs triage

lunar Ignored
(end of life, was needs-triage)
golang-gopkg-yaml.v3
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

trusty Ignored
(end of standard support)
upstream Needs triage

xenial Ignored
(end of standard support)
jammy Not vulnerable
(2.2.3)
lunar Not vulnerable
(2.2.3)
kinetic Ignored
(end of life, was needs-triage)
mantic Not vulnerable
(2.2.3)
golang-yaml.v2
Launchpad, Ubuntu, Debian
trusty Ignored
(end of standard support)
jammy Not vulnerable
(2.2.8-1)
lunar Not vulnerable
(2.2.8-1)
bionic
Released (0.0+git20170407.0.cd8b52f-1ubuntu2+esm1)
Available with Ubuntu Pro
focal
Released (2.2.2-1ubuntu0.1)
kinetic Ignored
(end of life, was needs-triage)
upstream
Released (2.2.3)
xenial
Released (0.0+git20160301.0.a83829b-1ubuntu0.1~esm1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
mantic Not vulnerable
(2.2.8-1)
kubernetes
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Needs triage

jammy Needs triage

trusty Ignored
(end of standard support)
upstream Needs triage

xenial Ignored
(end of standard support)
kinetic Ignored
(end of life, was needs-triage)
mantic Needs triage

lunar Ignored
(end of life, was needs-triage)
singularity-container
Launchpad, Ubuntu, Debian
bionic Needs triage

focal Does not exist

jammy Does not exist

kinetic Does not exist

trusty Ignored
(end of standard support)
upstream Needs triage

xenial Ignored
(end of standard support)
webhook
Launchpad, Ubuntu, Debian
bionic Needs triage

focal Needs triage

jammy Needs triage

trusty Ignored
(end of standard support)
upstream Needs triage

xenial Ignored
(end of standard support)
kinetic Ignored
(end of life, was needs-triage)
mantic Needs triage

lunar Ignored
(end of life, was needs-triage)

Severity score breakdown

Parameter Value
Base score 5.5
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H