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
| Author | Note |
|---|---|
| leosilva | kubernates is in fact a kubernetes installer that calls snap, not the package it self. |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
golang-github-coreos-discovery-etcd-io Launchpad, Ubuntu, Debian |
lunar |
Needs triage
|
| xenial |
Ignored
(end of standard support)
|
|
| trusty |
Ignored
(end of standard support)
|
|
| bionic |
Does not exist
|
|
| focal |
Needs triage
|
|
| jammy |
Needs triage
|
|
| kinetic |
Ignored
(end of life, was needs-triage)
|
|
| upstream |
Needs triage
|
|
|
golang-gopkg-yaml.v3 Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| focal |
Does not exist
|
|
| jammy |
Not vulnerable
(2.2.3)
|
|
| lunar |
Not vulnerable
(2.2.3)
|
|
| trusty |
Ignored
(end of standard support)
|
|
| upstream |
Needs triage
|
|
| xenial |
Ignored
(end of standard support)
|
|
| kinetic |
Ignored
(end of life, was needs-triage)
|
|
|
golang-yaml.v2 Launchpad, Ubuntu, Debian |
bionic |
Released
(0.0+git20170407.0.cd8b52f-1ubuntu2+esm1)
Available with Ubuntu Pro |
| focal |
Released
(2.2.2-1ubuntu0.1)
|
|
| jammy |
Not vulnerable
(2.2.8-1)
|
|
| lunar |
Not vulnerable
(2.2.8-1)
|
|
| trusty |
Ignored
(end of standard support)
|
|
| 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) |
|
|
kubernetes Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| focal |
Needs triage
|
|
| jammy |
Needs triage
|
|
| lunar |
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)
|
|
|
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
|
|
| lunar |
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)
|
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 |