CVE-2022-27652

A flaw was found in cri-o, where containers were incorrectly started with non-empty default permissions. A vulnerability was found in Moby (Docker Engine) where containers started incorrectly with non-empty inheritable Linux process capabilities. This flaw allows an attacker with access to programs with inheritable file capabilities to elevate those capabilities to the permitted set when execve(2) runs.

Published: 2022-04-18 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2022-27652 is rated Low Risk (22.8/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.04%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2022-27652

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2023-03-07 0.89% 0.04% -0.84%
2 2022-04-19 0.89%

Full EPSS history (2 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2022-27652

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.3 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:L)
Might cause slowdowns, glitches, or partial disruption—not a full brick.
1.8 3.4 [email protected]
4.6 2.0 MEDIUM
AV:L/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
3.9 6.4 [email protected]

Weakness enumeration for CVE-2022-27652

GitHub Security Advisory for CVE-2022-27652

GHSA-4hj2-r2pm-3hc6 · Severity: medium · Ecosystem: go — Incorrect Default Permissions in CRI-O

OS Trackers for CVE-2022-27652

vendor priority summary link
redhat medium https://access.redhat.com/security/cve/CVE-2022-27652
suse medium CVE-2022-27652 severity moderate: SUSE including 2 source package names (cri-o, cri-o-kubeadm-criconfig), 2 product×package rows across 1 product lines (SUSE CaaS Platform 4.0): Will Not Fix 2. https://www.suse.com/security/cve/CVE-2022-27652/
ubuntu medium CVE-2022-27652 medium priority: Ubuntu including 1 source packages (cri-o), 5 status rows across 5 suites (focal, jammy, noble, oracular, upstream): DNE 4, needs-triage 1. https://ubuntu.com/security/CVE-2022-27652

Affected software / configurations for CVE-2022-27652

Vendor Product Version Raw CPE
kubernetes cri-o cpe:2.3:a:kubernetes:cri-o:-:*:*:*:*:*:*:*
fedoraproject fedora 35 cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
mobyproject moby < 20.10.14 cpe:2.3:a:mobyproject:moby:*:*:*:*:*:*:*:*
redhat openshift_container_platform 3.11 cpe:2.3:a:redhat:openshift_container_platform:3.11:*:*:*:*:*:*:*
redhat openshift_container_platform 4.0 cpe:2.3:a:redhat:openshift_container_platform:4.0:*:*:*:*:*:*:*

References for CVE-2022-27652

cvelogic Threat Intelligence