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Fencer Vulns
medium 4.3

CVE-2007-4730 json

Buffer overflow in the compNewPixmap function in compalloc.c in the Composite extension for the X.org X11 server before 1.4 allows local us…

published 2007-09-11 19 y ago modified 2026-06-16 4 mo ago also EUVD-2007-4711

cvss
4.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 43%
public exploits
0
none known

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.

Patch / fix

  • xorg-server Debian 14, Debian 13, Debian 12 2:1.4-1

debian advisories DEBIAN-CVE-2007-4730

  • xorg-x11 RHEL 4 6.8.2-1.EL.31
  • xorg-x11-sdk RHEL 4 6.8.2-1.EL.31
  • xorg-x11-twm RHEL 4 6.8.2-1.EL.31
  • xorg-x11-xdm RHEL 4 6.8.2-1.EL.31
  • xorg-x11-xfs RHEL 4 6.8.2-1.EL.31
  • xorg-x11-libs RHEL 4 6.8.2-1.EL.31
  • xorg-x11-Xdmx RHEL 4 6.8.2-1.EL.31
  • xorg-x11-Xvfb RHEL 4 6.8.2-1.EL.31

red hat advisories RHSA-2007:0898

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2007-4730 updated

X.org composite extension buffer overflow

  • Red Hat Enterprise Linux AS version 4 xorg-x11 6.8.2-1.EL.31, xorg-x11-sdk 6.8.2-1.EL.31, xorg-x11-twm 6.8.2-1.EL.31, xorg-x11-xdm 6.8.2-1.EL.31, xorg-x11-xfs 6.8.2-1.EL.31, xorg-x11-libs 6.8.2-1.EL.31, +9 more Red Hat Enterprise Linux Desktop version 4 xorg-x11 6.8.2-1.EL.31, xorg-x11-sdk 6.8.2-1.EL.31, xorg-x11-twm 6.8.2-1.EL.31, xorg-x11-xdm 6.8.2-1.EL.31, xorg-x11-xfs 6.8.2-1.EL.31, xorg-x11-libs 6.8.2-1.EL.31, +9 more Red Hat Enterprise Linux ES version 4 xorg-x11 6.8.2-1.EL.31, xorg-x11-sdk 6.8.2-1.EL.31, xorg-x11-twm 6.8.2-1.EL.31, xorg-x11-xdm 6.8.2-1.EL.31, xorg-x11-xfs 6.8.2-1.EL.31, xorg-x11-libs 6.8.2-1.EL.31, +9 more Red Hat Enterprise Linux WS version 4 xorg-x11 6.8.2-1.EL.31, xorg-x11-sdk 6.8.2-1.EL.31, xorg-x11-twm 6.8.2-1.EL.31, xorg-x11-xdm 6.8.2-1.EL.31, xorg-x11-xfs 6.8.2-1.EL.31, xorg-x11-libs 6.8.2-1.EL.31, +9 more
    fixed: vendor fix RHSA-2007:0898

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.51% chance of exploitation in the next 30 days, higher than 43% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 2.0 4.3 AV:L/AC:L/Au:S/C:P/I:P/A:P

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.