LightDM 1.7.5 through 1.8.3 and 1.9.x before 1.9.2 does not apply the AppArmor profile to…
Priority LOW 16CWE-264Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Partial · Partial · None
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-264.
Summary
LightDM 1.7.5 through 1.8.3 and 1.9.x before 1.9.2 does not apply the AppArmor profile to the Guest account, which allows local users to bypass intended restrictions by leveraging the Guest account.
Why it matters now
EPSS 0.00438 38th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
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 · 21
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:robert_ancell:lightdm:1.7.5:*:*:*:*:*:*:* | 1.7.5 | Vulnerable | Robert Ancell |
| cpe:2.3:a:robert_ancell:lightdm:1.7.6:*:*:*:*:*:*:* | 1.7.6 | Vulnerable | Robert Ancell |
| cpe:2.3:a:robert_ancell:lightdm:1.7.7:*:*:*:*:*:*:* | 1.7.7 | Vulnerable | Robert Ancell |
| cpe:2.3:a:robert_ancell:lightdm:1.7.8:*:*:*:*:*:*:* | 1.7.8 | Vulnerable | Robert Ancell |
| cpe:2.3:a:robert_ancell:lightdm:1.7.9:*:*:*:*:*:*:* | 1.7.9 | Vulnerable | Robert Ancell |
| cpe:2.3:a:robert_ancell:lightdm:1.7.10:*:*:*:*:*:*:* | 1.7.10 | Vulnerable | Robert Ancell |
| cpe:2.3:a:robert_ancell:lightdm:1.7.11:*:*:*:*:*:*:* | 1.7.11 | Vulnerable | Robert Ancell |
| cpe:2.3:a:robert_ancell:lightdm:1.7.12:*:*:*:*:*:*:* | 1.7.12 | Vulnerable | Robert Ancell |
| cpe:2.3:a:robert_ancell:lightdm:1.7.13:*:*:*:*:*:*:* | 1.7.13 | Vulnerable | Robert Ancell |
| cpe:2.3:a:robert_ancell:lightdm:1.7.14:*:*:*:*:*:*:* | 1.7.14 | Vulnerable | Robert Ancell |
- cpe:2.3:a:robert_ancell:lightdm:1.7.5:*:*:*:*:*:*:* Versions 1.7.5 Vulnerable ·Robert Ancell
- cpe:2.3:a:robert_ancell:lightdm:1.7.6:*:*:*:*:*:*:* Versions 1.7.6 Vulnerable ·Robert Ancell
- cpe:2.3:a:robert_ancell:lightdm:1.7.7:*:*:*:*:*:*:* Versions 1.7.7 Vulnerable ·Robert Ancell
- cpe:2.3:a:robert_ancell:lightdm:1.7.8:*:*:*:*:*:*:* Versions 1.7.8 Vulnerable ·Robert Ancell
- cpe:2.3:a:robert_ancell:lightdm:1.7.9:*:*:*:*:*:*:* Versions 1.7.9 Vulnerable ·Robert Ancell
- cpe:2.3:a:robert_ancell:lightdm:1.7.10:*:*:*:*:*:*:* Versions 1.7.10 Vulnerable ·Robert Ancell
- cpe:2.3:a:robert_ancell:lightdm:1.7.11:*:*:*:*:*:*:* Versions 1.7.11 Vulnerable ·Robert Ancell
- cpe:2.3:a:robert_ancell:lightdm:1.7.12:*:*:*:*:*:*:* Versions 1.7.12 Vulnerable ·Robert Ancell
- cpe:2.3:a:robert_ancell:lightdm:1.7.13:*:*:*:*:*:*:* Versions 1.7.13 Vulnerable ·Robert Ancell
- cpe:2.3:a:robert_ancell:lightdm:1.7.14:*:*:*:*:*:*:* Versions 1.7.14 Vulnerable ·Robert Ancell
Show 11 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:robert_ancell:lightdm:1.7.15:*:*:*:*:*:*:* | 1.7.15 | Vulnerable | Robert Ancell |
| cpe:2.3:a:robert_ancell:lightdm:1.7.16:*:*:*:*:*:*:* | 1.7.16 | Vulnerable | Robert Ancell |
| cpe:2.3:a:robert_ancell:lightdm:1.7.17:*:*:*:*:*:*:* | 1.7.17 | Vulnerable | Robert Ancell |
| cpe:2.3:a:robert_ancell:lightdm:1.7.18:*:*:*:*:*:*:* | 1.7.18 | Vulnerable | Robert Ancell |
| cpe:2.3:a:robert_ancell:lightdm:1.8.0:*:*:*:*:*:*:* | 1.8.0 | Vulnerable | Robert Ancell |
| cpe:2.3:a:robert_ancell:lightdm:1.8.1:*:*:*:*:*:*:* | 1.8.1 | Vulnerable | Robert Ancell |
| cpe:2.3:a:robert_ancell:lightdm:1.8.2:*:*:*:*:*:*:* | 1.8.2 | Vulnerable | Robert Ancell |
| cpe:2.3:a:robert_ancell:lightdm:1.8.3:*:*:*:*:*:*:* | 1.8.3 | Vulnerable | Robert Ancell |
| cpe:2.3:a:robert_ancell:lightdm:1.9.0:*:*:*:*:*:*:* | 1.9.0 | Vulnerable | Robert Ancell |
| cpe:2.3:a:robert_ancell:lightdm:1.9.1:*:*:*:*:*:*:* | 1.9.1 | Vulnerable | Robert Ancell |
| cpe:2.3:o:canonical:ubuntu_linux:13.10:*:*:*:*:*:*:* | 13.10 | Vulnerable | Canonical |
- cpe:2.3:a:robert_ancell:lightdm:1.7.15:*:*:*:*:*:*:* Versions 1.7.15 Vulnerable ·Robert Ancell
- cpe:2.3:a:robert_ancell:lightdm:1.7.16:*:*:*:*:*:*:* Versions 1.7.16 Vulnerable ·Robert Ancell
- cpe:2.3:a:robert_ancell:lightdm:1.7.17:*:*:*:*:*:*:* Versions 1.7.17 Vulnerable ·Robert Ancell
- cpe:2.3:a:robert_ancell:lightdm:1.7.18:*:*:*:*:*:*:* Versions 1.7.18 Vulnerable ·Robert Ancell
- cpe:2.3:a:robert_ancell:lightdm:1.8.0:*:*:*:*:*:*:* Versions 1.8.0 Vulnerable ·Robert Ancell
- cpe:2.3:a:robert_ancell:lightdm:1.8.1:*:*:*:*:*:*:* Versions 1.8.1 Vulnerable ·Robert Ancell
- cpe:2.3:a:robert_ancell:lightdm:1.8.2:*:*:*:*:*:*:* Versions 1.8.2 Vulnerable ·Robert Ancell
- cpe:2.3:a:robert_ancell:lightdm:1.8.3:*:*:*:*:*:*:* Versions 1.8.3 Vulnerable ·Robert Ancell
- cpe:2.3:a:robert_ancell:lightdm:1.9.0:*:*:*:*:*:*:* Versions 1.9.0 Vulnerable ·Robert Ancell
- cpe:2.3:a:robert_ancell:lightdm:1.9.1:*:*:*:*:*:*:* Versions 1.9.1 Vulnerable ·Robert Ancell
- cpe:2.3:o:canonical:ubuntu_linux:13.10:*:*:*:*:*:*:* Versions 13.10 Vulnerable ·Canonical
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2013-4459
- 2026-10-03 Alias added: GHSA-wqp2-x23v-m2mf
References
Sources
- CVE-2013-4459 · CVE Program
- CVE-2013-4459 · NVD
- FIRST EPSS
- GHSA-wqp2-x23v-m2mf · GitHub Advisory Database · CC BY 4.0
- CVE-2013-4459 · 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