The (1) checkPasswd and (2) checkGroupXlockPasswds functions in xlockmore before 5.43 do…
Priority LOW 11Published · 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
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
The (1) checkPasswd and (2) checkGroupXlockPasswds functions in xlockmore before 5.43 do not properly handle when a NULL value is returned upon an error by the crypt or dispcrypt function as implemented in glibc 2.17 and later, which allows attackers to bypass the screen lock via vectors related to invalid salts.
Why it matters now
EPSS 0.00397 34th percentileScored 2026-11-07
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 · 19
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:david_bagley:xlockmore:*:*:*:*:*:*:*:* | up to 5.42 | Vulnerable | David Bagley |
| cpe:2.3:a:david_bagley:xlockmore:5.24:*:*:*:*:*:*:* | 5.24 | Vulnerable | David Bagley |
| cpe:2.3:a:david_bagley:xlockmore:5.25:*:*:*:*:*:*:* | 5.25 | Vulnerable | David Bagley |
| cpe:2.3:a:david_bagley:xlockmore:5.26:*:*:*:*:*:*:* | 5.26 | Vulnerable | David Bagley |
| cpe:2.3:a:david_bagley:xlockmore:5.27:*:*:*:*:*:*:* | 5.27 | Vulnerable | David Bagley |
| cpe:2.3:a:david_bagley:xlockmore:5.28:*:*:*:*:*:*:* | 5.28 | Vulnerable | David Bagley |
| cpe:2.3:a:david_bagley:xlockmore:5.29:*:*:*:*:*:*:* | 5.29 | Vulnerable | David Bagley |
| cpe:2.3:a:david_bagley:xlockmore:5.30:*:*:*:*:*:*:* | 5.30 | Vulnerable | David Bagley |
| cpe:2.3:a:david_bagley:xlockmore:5.31:*:*:*:*:*:*:* | 5.31 | Vulnerable | David Bagley |
| cpe:2.3:a:david_bagley:xlockmore:5.32:*:*:*:*:*:*:* | 5.32 | Vulnerable | David Bagley |
- cpe:2.3:a:david_bagley:xlockmore:*:*:*:*:*:*:*:* Versions up to 5.42 Vulnerable ·David Bagley
- cpe:2.3:a:david_bagley:xlockmore:5.24:*:*:*:*:*:*:* Versions 5.24 Vulnerable ·David Bagley
- cpe:2.3:a:david_bagley:xlockmore:5.25:*:*:*:*:*:*:* Versions 5.25 Vulnerable ·David Bagley
- cpe:2.3:a:david_bagley:xlockmore:5.26:*:*:*:*:*:*:* Versions 5.26 Vulnerable ·David Bagley
- cpe:2.3:a:david_bagley:xlockmore:5.27:*:*:*:*:*:*:* Versions 5.27 Vulnerable ·David Bagley
- cpe:2.3:a:david_bagley:xlockmore:5.28:*:*:*:*:*:*:* Versions 5.28 Vulnerable ·David Bagley
- cpe:2.3:a:david_bagley:xlockmore:5.29:*:*:*:*:*:*:* Versions 5.29 Vulnerable ·David Bagley
- cpe:2.3:a:david_bagley:xlockmore:5.30:*:*:*:*:*:*:* Versions 5.30 Vulnerable ·David Bagley
- cpe:2.3:a:david_bagley:xlockmore:5.31:*:*:*:*:*:*:* Versions 5.31 Vulnerable ·David Bagley
- cpe:2.3:a:david_bagley:xlockmore:5.32:*:*:*:*:*:*:* Versions 5.32 Vulnerable ·David Bagley
Show 9 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:david_bagley:xlockmore:5.33:*:*:*:*:*:*:* | 5.33 | Vulnerable | David Bagley |
| cpe:2.3:a:david_bagley:xlockmore:5.34:*:*:*:*:*:*:* | 5.34 | Vulnerable | David Bagley |
| cpe:2.3:a:david_bagley:xlockmore:5.35:*:*:*:*:*:*:* | 5.35 | Vulnerable | David Bagley |
| cpe:2.3:a:david_bagley:xlockmore:5.36:*:*:*:*:*:*:* | 5.36 | Vulnerable | David Bagley |
| cpe:2.3:a:david_bagley:xlockmore:5.37:*:*:*:*:*:*:* | 5.37 | Vulnerable | David Bagley |
| cpe:2.3:a:david_bagley:xlockmore:5.38:*:*:*:*:*:*:* | 5.38 | Vulnerable | David Bagley |
| cpe:2.3:a:david_bagley:xlockmore:5.39:*:*:*:*:*:*:* | 5.39 | Vulnerable | David Bagley |
| cpe:2.3:a:david_bagley:xlockmore:5.40:*:*:*:*:*:*:* | 5.40 | Vulnerable | David Bagley |
| cpe:2.3:a:david_bagley:xlockmore:5.41:*:*:*:*:*:*:* | 5.41 | Vulnerable | David Bagley |
- cpe:2.3:a:david_bagley:xlockmore:5.33:*:*:*:*:*:*:* Versions 5.33 Vulnerable ·David Bagley
- cpe:2.3:a:david_bagley:xlockmore:5.34:*:*:*:*:*:*:* Versions 5.34 Vulnerable ·David Bagley
- cpe:2.3:a:david_bagley:xlockmore:5.35:*:*:*:*:*:*:* Versions 5.35 Vulnerable ·David Bagley
- cpe:2.3:a:david_bagley:xlockmore:5.36:*:*:*:*:*:*:* Versions 5.36 Vulnerable ·David Bagley
- cpe:2.3:a:david_bagley:xlockmore:5.37:*:*:*:*:*:*:* Versions 5.37 Vulnerable ·David Bagley
- cpe:2.3:a:david_bagley:xlockmore:5.38:*:*:*:*:*:*:* Versions 5.38 Vulnerable ·David Bagley
- cpe:2.3:a:david_bagley:xlockmore:5.39:*:*:*:*:*:*:* Versions 5.39 Vulnerable ·David Bagley
- cpe:2.3:a:david_bagley:xlockmore:5.40:*:*:*:*:*:*:* Versions 5.40 Vulnerable ·David Bagley
- cpe:2.3:a:david_bagley:xlockmore:5.41:*:*:*:*:*:*:* Versions 5.41 Vulnerable ·David Bagley
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2013-4143
- 2026-10-03 Alias added: GHSA-jcgx-qjj8-pgf8
References
Sources
- CVE-2013-4143 · CVE Program
- CVE-2013-4143 · NVD
- FIRST EPSS
- GHSA-jcgx-qjj8-pgf8 · GitHub Advisory Database · CC BY 4.0
- CVE-2013-4143 · Red Hat security data · CC BY 4.0
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