Buffer overflow in fbglyph.c in XFree86 before 4.2.0, related to glyph clipping for large…
Priority LOW 32Published · 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
- Complete · Complete · Complete
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
Buffer overflow in fbglyph.c in XFree86 before 4.2.0, related to glyph clipping for large origins, allows attackers to cause a denial of service and possibly gain privileges via a large number of characters, possibly through the web page search form of KDE Konqueror or from an xterm command with a long title.
Why it matters now
EPSS 0.00454 39th 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 · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:xfree86_project:x11r6:4.0:*:*:*:*:*:*:* | 4.0 | Vulnerable | Xfree86 Project |
| cpe:2.3:a:xfree86_project:x11r6:4.0.1:*:*:*:*:*:*:* | 4.0.1 | Vulnerable | Xfree86 Project |
| cpe:2.3:a:xfree86_project:x11r6:4.0.3:*:*:*:*:*:*:* | 4.0.3 | Vulnerable | Xfree86 Project |
- cpe:2.3:a:xfree86_project:x11r6:4.0:*:*:*:*:*:*:* Versions 4.0 Vulnerable ·Xfree86 Project
- cpe:2.3:a:xfree86_project:x11r6:4.0.1:*:*:*:*:*:*:* Versions 4.0.1 Vulnerable ·Xfree86 Project
- cpe:2.3:a:xfree86_project:x11r6:4.0.3:*:*:*:*:*:*:* Versions 4.0.3 Vulnerable ·Xfree86 Project
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2001-0955
- 2026-10-03 Alias added: GHSA-v8xr-r568-8jxh
References
More Xfree86 Project X11r6 vulnerabilities
- TI-2004-00071 Buffer overflow in the ReadFontAlias function in XFree86 4.1.0 to 4.3.0, when using the… CVSS 2.0HIGH 10.0
- TI-2004-00070 Buffer overflow in ReadFontAlias from dirfile.c of XFree86 4.1.0 through 4.3.0 allows… CVSS 2.0HIGH 10.0
- TI-2004-00826 Multiple vulnerabilities in libXpm for 6.8.1 and earlier, as used in XFree86 and other… CVSS 2.0HIGH 10.0
- TI-2002-01251 Buffer overflow in Dispatch() routine for XFS font server (fs.auto) on Solaris 2.5.1… CVSS 2.0HIGH 7.5
- TI-1999-00238 Guessable magic cookies in X Windows allows remote attackers to execute commands, e.g. CVSS 2.0HIGH 10.0
- TI-2002-01432 xdm, with the authComplain variable set to false, allows arbitrary attackers to connect… CVSS 2.0HIGH 10.0
Sources
- CVE-2001-0955 · CVE Program
- CVE-2001-0955 · NVD
- FIRST EPSS
- GHSA-v8xr-r568-8jxh · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences