CVE-2021-3899

Publication date 17 May 2022

Last updated 30 May 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.8 · High

Score breakdown

There is a race condition in the ‘replaced executable’ detection that, with the correct local configuration, allow an attacker to execute arbitrary code as root.

Status

Package Ubuntu Release Status
apport 25.04 plucky
Fixed 2.21.0-0ubuntu1
24.10 oracular
Fixed 2.21.0-0ubuntu1
24.04 LTS noble
Fixed 2.21.0-0ubuntu1
23.10 mantic
Fixed 2.21.0-0ubuntu1
23.04 lunar
Fixed 2.21.0-0ubuntu1
22.10 kinetic
Fixed 2.21.0-0ubuntu1
22.04 LTS jammy
Fixed 2.20.11-0ubuntu82.1
21.10 impish
Fixed 2.20.11-0ubuntu71.2
21.04 hirsute Ignored end of life
20.04 LTS focal
Fixed 2.20.11-0ubuntu27.24
18.04 LTS bionic
Fixed 2.20.9-0ubuntu7.28
16.04 LTS xenial
Fixed 2.20.1-0ubuntu2.30+esm4
14.04 LTS trusty
Vulnerable

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Severity score breakdown

Parameter Value
Base score 7.8 · High
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

Other references