Buffer overflow in the compNewPixmap function in compalloc.c in the Composite extension…
Priority LOW 21CWE-119Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- Partial · Partial · Partial
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-119 and the CVSS impact.
Summary
Buffer overflow in the compNewPixmap function in compalloc.c in the Composite extension for the X.org X11 server before 1.4 allows local users to execute arbitrary code by copying data from a large pixel depth pixmap into a smaller pixel depth pixmap.
Why it matters now
EPSS 0.00511 43rd percentileScored 2026-11-07
Fix Fixed Red Hat: 1 advisory
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 · 5
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:x.org:xorg-server:1.01:*:*:*:*:*:*:* | 1.01 | Vulnerable | x.org |
| cpe:2.3:a:x.org:xorg-server:1.1:*:*:*:*:*:*:* | 1.1 | Vulnerable | x.org |
| cpe:2.3:a:x.org:xorg-server:1.02:*:*:*:*:*:*:* | 1.02 | Vulnerable | x.org |
| cpe:2.3:a:x.org:xorg-server:1.2:*:*:*:*:*:*:* | 1.2 | Vulnerable | x.org |
| cpe:2.3:a:x.org:xorg-server:1.3:*:*:*:*:*:*:* | 1.3 | Vulnerable | x.org |
- cpe:2.3:a:x.org:xorg-server:1.01:*:*:*:*:*:*:* Versions 1.01 Vulnerable ·x.org
- cpe:2.3:a:x.org:xorg-server:1.1:*:*:*:*:*:*:* Versions 1.1 Vulnerable ·x.org
- cpe:2.3:a:x.org:xorg-server:1.02:*:*:*:*:*:*:* Versions 1.02 Vulnerable ·x.org
- cpe:2.3:a:x.org:xorg-server:1.2:*:*:*:*:*:*:* Versions 1.2 Vulnerable ·x.org
- cpe:2.3:a:x.org:xorg-server:1.3:*:*:*:*:*:*:* Versions 1.3 Vulnerable ·x.org
Remediation
Red Hat 1 advisory
- RHSA-2007:0898 Released 2007-09-19 · Red Hat rating Moderatexorg-x11 security update
- Red Hat Enterprise Linux AS version 4 xorg-x11-6.8.2-1.EL.31, xorg-x11-6.8.2-1.EL.31.i386, xorg-x11-6.8.2-1.EL.31.ia64 +47
- Red Hat Enterprise Linux Desktop version 4 xorg-x11-6.8.2-1.EL.31, xorg-x11-6.8.2-1.EL.31.i386, xorg-x11-Mesa-libGL-6.8.2-1.EL.31 +33
- Red Hat Enterprise Linux ES version 4 xorg-x11-6.8.2-1.EL.31, xorg-x11-6.8.2-1.EL.31.i386, xorg-x11-6.8.2-1.EL.31.ia64 +47
- Red Hat Enterprise Linux WS version 4 xorg-x11-6.8.2-1.EL.31, xorg-x11-6.8.2-1.EL.31.i386, xorg-x11-6.8.2-1.EL.31.ia64 +47
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux AS version 4 | Fixed | RHSA-2007:0898 |
| Red Hat Enterprise Linux Desktop version 4 | Fixed | RHSA-2007:0898 |
| Red Hat Enterprise Linux ES version 4 | Fixed | RHSA-2007:0898 |
| Red Hat Enterprise Linux WS version 4 | Fixed | RHSA-2007:0898 |
Timeline
- 2026-10-02 Threatist record created from CVE-2007-4730
- 2026-10-03 Alias added: GHSA-737c-wj7m-pqqr
References
Patch 1
Advisory 7
Other 9
- [xorg-announce] 20070906 xorg-server 1.4
- 37726
- https://issues.rpath.com/browse/RPL-1728
- http://wiki.rpath.com/wiki/Advisories:rPSA-2007-0187
- http://bugs.freedesktop.org/show_bug.cgi?id=7447
- http://support.avaya.com/elmodocs2/security/ASA-2007-394.htm
- oval:org.mitre.oval:def:10430
- http://bugs.gentoo.org/show_bug.cgi?id=191964
- ADV-2007-3098
More x.org Xorg-server vulnerabilities
- TI-2006-04295 X.Org and XFree86, including libX11, xdm, xf86dga, xinit, xload, xtrans, and xterm, does… CVSS 2.0HIGH 7.2
- TI-2015-02796 The authentication setup in XWayland 1.16.x and 1.17.x before 1.17.2 starts the server in… CVSS 2.0LOW 3.6
Sources
- CVE-2007-4730 · CVE Program
- CVE-2007-4730 · NVD
- FIRST EPSS
- GHSA-737c-wj7m-pqqr · GitHub Advisory Database · CC BY 4.0
- CVE-2007-4730 · Red Hat security data · CC BY 4.0
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