RealtimeKit (aka rtkit) 0.5 does not properly use D-Bus for communication with a polkit…
Priority LOW 21CWE-264Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Partial · Partial · Partial
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-264.
Summary
RealtimeKit (aka rtkit) 0.5 does not properly use D-Bus for communication with a polkit authority, which allows local users to bypass intended access restrictions by leveraging a PolkitUnixProcess PolkitSubject race condition via a (1) setuid process or (2) pkexec process, a related issue to CVE-2013-4288.
Why it matters now
EPSS 0.00374 31st percentileScored 2026-11-07
Fix Fixed Red Hat: 1 advisory
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 |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:lennart_poettering:rkit:0.5:*:*:*:*:*:*:* | 0.5 | Vulnerable | Lennart Poettering |
| cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* | 6.0 | Vulnerable | Red Hat |
- cpe:2.3:a:lennart_poettering:rkit:0.5:*:*:*:*:*:*:* Versions 0.5 Vulnerable ·Lennart Poettering
- cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
Remediation
Red Hat 1 advisory
- RHSA-2013:1282 Released 2013-09-24 · Red Hat rating Importantrtkit security update
- Red Hat Enterprise Linux Desktop (v. 6) rtkit-0.5-2.el6_4
- Red Hat Enterprise Linux HPC Node Optional (v. 6) rtkit-0.5-2.el6_4
- Red Hat Enterprise Linux Server (v. 6) rtkit-0.5-2.el6_4
- Red Hat Enterprise Linux Workstation (v. 6) rtkit-0.5-2.el6_4
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux Desktop (v. 6) | Fixed | RHSA-2013:1282 |
| Red Hat Enterprise Linux HPC Node Optional (v. 6) | Fixed | RHSA-2013:1282 |
| Red Hat Enterprise Linux Server (v. 6) | Fixed | RHSA-2013:1282 |
| Red Hat Enterprise Linux Workstation (v. 6) | Fixed | RHSA-2013:1282 |
Not affected: 1 product
- Red Hat Enterprise Linux 7
Timeline
- 2026-10-02 Threatist record created from CVE-2013-4326
- 2026-10-03 Alias added: GHSA-63rr-v2vx-w3jw
References
Sources
- CVE-2013-4326 · CVE Program
- CVE-2013-4326 · NVD
- FIRST EPSS
- GHSA-63rr-v2vx-w3jw · GitHub Advisory Database · CC BY 4.0
- CVE-2013-4326 · 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