Integer overflow in the CIDAFM function in X.Org 6.8.2 and XFree86 X server allows local…
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
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat.
Summary
Integer overflow in the CIDAFM function in X.Org 6.8.2 and XFree86 X server allows local users to execute arbitrary code via crafted Adobe Font Metrics (AFM) files with a modified number of character metrics (StartCharMetrics), which leads to a heap-based buffer overflow.
Why it matters now
EPSS 0.00593 48th percentileScored 2026-11-07
Fix Fixed Red Hat: 2 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 · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:x.org:x.org:6.8.2:*:*:*:*:*:*:* | 6.8.2 | Vulnerable | x.org |
| cpe:2.3:a:xfree86_project:xfree86_x:*:*:*:*:*:*:*:* | all versions | Vulnerable | Xfree86 Project |
- cpe:2.3:a:x.org:x.org:6.8.2:*:*:*:*:*:*:* Versions 6.8.2 Vulnerable ·x.org
- cpe:2.3:a:xfree86_project:xfree86_x:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Xfree86 Project
Remediation
Red Hat 2 advisories
- RHSA-2006:0665 Released 2006-09-12 · Red Hat rating Importantxorg-x11 security update
- Red Hat Enterprise Linux AS version 4 xorg-x11-6.8.2-1.EL.13.37.2, xorg-x11-6.8.2-1.EL.13.37.2.i386, xorg-x11-6.8.2-1.EL.13.37.2.ia64 +47
- Red Hat Enterprise Linux Desktop version 4 xorg-x11-6.8.2-1.EL.13.37.2, xorg-x11-6.8.2-1.EL.13.37.2.i386, xorg-x11-Mesa-libGL-6.8.2-1.EL.13.37.2 +33
- Red Hat Enterprise Linux ES version 4 xorg-x11-6.8.2-1.EL.13.37.2, xorg-x11-6.8.2-1.EL.13.37.2.i386, xorg-x11-6.8.2-1.EL.13.37.2.ia64 +47
- Red Hat Enterprise Linux WS version 4 xorg-x11-6.8.2-1.EL.13.37.2, xorg-x11-6.8.2-1.EL.13.37.2.i386, xorg-x11-6.8.2-1.EL.13.37.2.ia64 +47
- RHSA-2006:0666 Released 2006-09-12 · Red Hat rating ImportantXFree86 security update
- Red Hat Desktop version 3 XFree86-100dpi-fonts-4.3.0-113.EL, XFree86-100dpi-fonts-4.3.0-113.EL.i386, XFree86-4.3.0-113.EL +47
- Red Hat Enterprise Linux AS version 3 XFree86-100dpi-fonts-4.3.0-113.EL, XFree86-100dpi-fonts-4.3.0-113.EL.i386, XFree86-100dpi-fonts-4.3.0-113.EL.ia64 +47
- Red Hat Enterprise Linux ES version 3 XFree86-100dpi-fonts-4.3.0-113.EL, XFree86-100dpi-fonts-4.3.0-113.EL.i386, XFree86-100dpi-fonts-4.3.0-113.EL.ia64 +47
- Red Hat Enterprise Linux WS version 3 XFree86-100dpi-fonts-4.3.0-113.EL, XFree86-100dpi-fonts-4.3.0-113.EL.i386, XFree86-100dpi-fonts-4.3.0-113.EL.ia64 +47
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Desktop version 3 | Fixed | RHSA-2006:0666 |
| Red Hat Enterprise Linux AS version 3 | Fixed | RHSA-2006:0666 |
| Red Hat Enterprise Linux AS version 4 | Fixed | RHSA-2006:0665 |
| Red Hat Enterprise Linux Desktop version 4 | Fixed | RHSA-2006:0665 |
| Red Hat Enterprise Linux ES version 3 | Fixed | RHSA-2006:0666 |
| Red Hat Enterprise Linux ES version 4 | Fixed | RHSA-2006:0665 |
| Red Hat Enterprise Linux WS version 3 | Fixed | RHSA-2006:0666 |
| Red Hat Enterprise Linux WS version 4 | Fixed | RHSA-2006:0665 |
Timeline
- 2026-10-02 Threatist record created from CVE-2006-3739
- 2026-10-03 Alias added: GHSA-h3pc-gf82-7xhp
References
Patch 3
Other 9
- http://support.avaya.com/elmodocs2/security/ASA-2006-191.htm
- http://support.avaya.com/elmodocs2/security/ASA-2006-190.htm
- ADV-2007-1171
- https://issues.rpath.com/browse/RPL-614
- http://www.vmware.com/support/esx25/doc/esx-254-200702-patch.html
- oval:org.mitre.oval:def:10305
- ADV-2007-0322
- ADV-2006-3581
- ADV-2006-3582
Sources
- CVE-2006-3739 · CVE Program
- CVE-2006-3739 · NVD
- FIRST EPSS
- GHSA-h3pc-gf82-7xhp · GitHub Advisory Database · CC BY 4.0
- CVE-2006-3739 · 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