The DEC UDK processing feature in the xterm terminal emulator in XFree86 4.2.99.4 and…
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
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat.
Summary
The DEC UDK processing feature in the xterm terminal emulator in XFree86 4.2.99.4 and earlier allows attackers to cause a denial of service via a certain character escape sequence that causes the terminal to enter a tight loop.
Why it matters now
EPSS 0.00421 36th percentileScored 2026-11-07
Fix Fixed Red Hat: 4 advisories
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 · 6
| 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:x11r6:4.1.0:*:*:*:*:*:*:* | 4.1.0 | Vulnerable | Xfree86 Project |
| cpe:2.3:a:xfree86_project:x11r6:4.2.0:*:*:*:*:*:*:* | 4.2.0 | Vulnerable | Xfree86 Project |
| cpe:2.3:a:xfree86_project:x11r6:4.2.1:*:*:*:*:*:*:* | 4.2.1 | 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
- cpe:2.3:a:xfree86_project:x11r6:4.1.0:*:*:*:*:*:*:* Versions 4.1.0 Vulnerable ·Xfree86 Project
- cpe:2.3:a:xfree86_project:x11r6:4.2.0:*:*:*:*:*:*:* Versions 4.2.0 Vulnerable ·Xfree86 Project
- cpe:2.3:a:xfree86_project:x11r6:4.2.1:*:*:*:*:*:*:* Versions 4.2.1 Vulnerable ·Xfree86 Project
Remediation
Red Hat 4 advisories
- RHSA-2003:066 Released 2003-06-25 · Red Hat rating Important: Updated XFree86 packages provide security and bug fixes
- Red Hat Linux 7.3
- RHSA-2003:064 Released 2003-06-25 · Red Hat rating Important: Updated XFree86 4.1.0 packages are available
- Red Hat Linux 7.1
- Red Hat Linux 7.2
- RHSA-2003:067 Released 2003-06-25 · Red Hat rating Important: Updated XFree86 packages provide security and bug fixes
- Red Hat Linux 8.0
Show 1 more Red Hat advisories
- RHSA-2003:065 Released 2003-06-25 · Red Hat rating ImportantXFree86 security update
- Red Hat Enterprise Linux AS (Advanced Server) version 2.1
- Red Hat Enterprise Linux ES version 2.1
- Red Hat Enterprise Linux WS version 2.1
- Red Hat Linux Advanced Workstation 2.1
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux AS (Advanced Server) version 2.1 | Fixed | RHSA-2003:065 |
| Red Hat Enterprise Linux ES version 2.1 | Fixed | RHSA-2003:065 |
| Red Hat Enterprise Linux WS version 2.1 | Fixed | RHSA-2003:065 |
| Red Hat Linux 7.1 | Fixed | RHSA-2003:064 |
| Red Hat Linux 7.2 | Fixed | RHSA-2003:064 |
| Red Hat Linux 7.3 | Fixed | RHSA-2003:066 |
| Red Hat Linux 8.0 | Fixed | RHSA-2003:067 |
| Red Hat Linux Advanced Workstation 2.1 | Fixed | RHSA-2003:065 |
Timeline
- 2026-10-02 Threatist record created from CVE-2003-0071
- 2026-10-03 Alias added: GHSA-xv76-8jhj-2c53
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-2003-0071 · CVE Program
- CVE-2003-0071 · NVD
- FIRST EPSS
- GHSA-xv76-8jhj-2c53 · GitHub Advisory Database · CC BY 4.0
- CVE-2003-0071 · 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