Improper input validation in udisks2
Priority LOW 21CWE-20Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- High
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 2 fixed, 1 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.
Summary
A vulnerability found in udisks2. This flaw allows an attacker to input a specially crafted image file/USB leading to kernel panic. The highest threat from this vulnerability is to system availability.
Why it matters now
EPSS 0.00905 60th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial Red Hat: 1 advisoryRed Hat: 2 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 |
|---|---|---|---|---|---|
| — | udisks2 | udisks-2.9.4 | — | No fix listed | CNA |
- udisks2 Vendor— Affected udisks-2.9.4 Fixed in — No fix listed CNA
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:udisks_project:udisks:*:*:*:*:*:*:*:* | before 2.9.4 | Vulnerable | Udisks Project |
| cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* | 34 | Vulnerable | Fedoraproject |
| cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* | 8.0 | Vulnerable | Red Hat |
- cpe:2.3:a:udisks_project:udisks:*:*:*:*:*:*:*:* Versions before 2.9.4 Vulnerable ·Udisks Project
- cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* Versions 34 Vulnerable ·Fedoraproject
- cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Red Hat
Remediation
Red Hat 1 advisory
- RHSA-2022:1820 Released 2022-05-10 · Red Hat rating Lowudisks2 security and bug fix update
- Red Hat Enterprise Linux AppStream (v. 8) libudisks2-2.9.0-9.el8, udisks2-2.9.0-9.el8, udisks2-iscsi-2.9.0-9.el8 +2
- Red Hat Enterprise Linux CRB (v. 8) libudisks2-devel-2.9.0-9.el8
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2022:1820 |
| Red Hat Enterprise Linux CRB (v. 8) | Fixed | RHSA-2022:1820 |
Not affected: 1 product
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2021-3802
- 2026-10-03 Alias added: GHSA-p3gq-xgj7-pfr7
References
Sources
- CVE-2021-3802 · CVE Program
- CVE-2021-3802 · NVD
- FIRST EPSS
- GHSA-p3gq-xgj7-pfr7 · GitHub Advisory Database · CC BY 4.0
- CVE-2021-3802 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences