Incorrect default permissions in crun
Priority LOW 35CWE-276Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 1 fixed, 1 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.
Summary
A flaw was found in crun where containers were incorrectly started with non-empty default permissions. A vulnerability was found in Moby (Docker Engine) where containers were 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.
Why it matters now
EPSS 0.0124 69th percentileScored 2026-11-07
Fix Partial Red Hat: 2 advisoriesRed Hat: 1 fixed, 1 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | crun | Affects crun v1.4.3 and prior, Fixed in – v1.4.4 | — | No fix listed | CNA |
- crun Vendor— Affected Affects crun v1.4.3 and prior, Fixed in – v1.4.4 Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:crun_project:crun:*:*:*:*:*:*:*:* | before 1.4.4 | Vulnerable | Crun Project |
| cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* | 34 | Vulnerable | Fedoraproject |
| cpe:2.3:a:redhat:openshift_container_platform:4.0:*:*:*:*:*:*:* | 4.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* | 8.0 | Vulnerable | Red Hat |
- cpe:2.3:a:crun_project:crun:*:*:*:*:*:*:*:* Versions before 1.4.4 Vulnerable ·Crun Project
- cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* Versions 34 Vulnerable ·Fedoraproject
- cpe:2.3:a:redhat:openshift_container_platform:4.0:*:*:*:*:*:*:* Versions 4.0 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Red Hat
Remediation
Red Hat 2 advisories
- RHSA-2022:1762 Released 2022-05-10 · Red Hat rating Importantcontainer-tools:rhel8 security, bug fix, and enhancement update
- Red Hat Enterprise Linux AppStream (v. 8) aardvark-dns-2:1.0.1-27.module+el8.6.0+14673+621cb8be.aarch64::container-tools:rhel8, aardvark-dns-2:1.0.1-27.module+el8.6.0+14673+621cb8be.ppc64le::container-tools:rhel8, aardvark-dns-2:1.0.1-27.module+el8.6.0+14673+621cb8be.s390x::container-tools:rhel8 +47
- RHSA-2022:1793 Released 2022-05-10 · Red Hat rating Moderatecontainer-tools:3.0 security and bug fix update
- Red Hat Enterprise Linux AppStream (v. 8) buildah-1.19.9-3.module+el8.6.0+14694+4f5132e0.aarch64::container-tools:3.0, buildah-1.19.9-3.module+el8.6.0+14694+4f5132e0.ppc64le::container-tools:3.0, buildah-1.19.9-3.module+el8.6.0+14694+4f5132e0.s390x::container-tools:3.0 +47
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat OpenShift Container Platform 4 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2022:1762, RHSA-2022:1793 |
Not affected: 2 products
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2022-27650
References
Sources
- CVE-2022-27650 · CVE Program
- CVE-2022-27650 · NVD
- FIRST EPSS
- CVE-2022-27650 · Red Hat security data · CC BY 4.0
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