CVE Vulnerabilities

CVE-2007-4990

Published: Oct 05, 2007 | Modified: Apr 09, 2025
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
7.5 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P
RedHat/V2
RedHat/V3
Ubuntu
MEDIUM
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The swap_char2b function in X.Org X Font Server (xfs) before 1.0.5 allows context-dependent attackers to execute arbitrary code via (1) QueryXBitmaps and (2) QueryXExtents protocol requests with crafted size values that specify an arbitrary number of bytes to be swapped on the heap, which triggers heap corruption.

Affected Software

NameVendorStart VersionEnd Version
X_font_serverX.org*1.0.4 (including)
Red Hat Enterprise Linux 2.1RedHatXFree86-0:4.1.0-86.EL*
Red Hat Enterprise Linux 3RedHatXFree86-0:4.3.0-126.EL*
Red Hat Enterprise Linux 4RedHatxorg-x11-0:6.8.2-1.EL.33.0.2*
XfsUbuntudapper*
XfsUbuntuedgy*
XfsUbuntufeisty*
XfsUbuntugutsy*
XfsUbuntuupstream*

References