The authentication_agent_new function in…
Priority LOW 12Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · Partial
- Fix status
- Will not fix Red Hat: no fix planned
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat.
Summary
The authentication_agent_new function in polkitbackend/polkitbackendinteractiveauthority.c in PolicyKit (aka polkit) before 0.113 allows local users to cause a denial of service (NULL pointer dereference and polkitd daemon crash) by calling RegisterAuthenticationAgent with an invalid object path.
Why it matters now
EPSS 0.00432 37th percentileScored 2026-11-07
Fix Will not fix Red Hat: no fix planned
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 · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:polkit_project:polkit:*:*:*:*:*:*:*:* | up to 0.112 | Vulnerable | Polkit Project |
- cpe:2.3:a:polkit_project:polkit:*:*:*:*:*:*:*:* Versions up to 0.112 Vulnerable ·Polkit Project
Remediation
No fixed version listed by the sources yet.
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: Will not fix |
Not affected: 1 product
- Red Hat Enterprise Linux 6
Timeline
- 2026-10-02 Threatist record created from CVE-2015-3218
- 2026-10-03 Alias added: GHSA-q9cc-g5q2-4hhx
References
More Polkit Project Polkit vulnerabilities
- TI-2021-02923 Out-of-bounds write in polkit KEVCVSS 3.1HIGH 7.8
- TI-2021-02511 Incorrect authorization in polkit KEVCVSS 3.1HIGH 7.8
- TI-2018-14011 A flaw was found in PolicyKit (aka polkit) 0.115 that allows a user with a uid greater… CVSS 3.0HIGH 8.8
- TI-2013-03754 Race condition in PolicyKit (aka polkit) allows local users to bypass intended PolicyKit… CVSS 2.0HIGH 7.2
- TI-2019-04343 In PolicyKit (aka polkit) 0.115, the "start time" protection mechanism can be bypassed… CVSS 3.0MEDIUM 6.7
- TI-2021-02991 Uncontrolled resource consumption in polkitd CVSS 3.1MEDIUM 5.5
Sources
- CVE-2015-3218 · CVE Program
- CVE-2015-3218 · NVD
- FIRST EPSS
- GHSA-q9cc-g5q2-4hhx · GitHub Advisory Database · CC BY 4.0
- CVE-2015-3218 · 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