RHEL 2.1 : XFree86 (RHSA-2003:289)

Critical Nessus Plugin ID 12424


The remote Red Hat host is missing one or more security updates.


Updated XFree86 packages provide security fixes to font libraries and XDM.

XFree86 is an implementation of the X Window System providing the core graphical user interface and video drivers. XDM is the X display manager.

Multiple integer overflows in the transfer and enumeration of font libraries in XFree86 allow local or remote attackers to cause a denial of service or execute arbitrary code via heap-based and stack-based buffer overflow attacks. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2003-0730 to this issue.

The risk to users from this vulnerability is limited because only clients can be affected by these bugs, however in some (non-default) configurations, both xfs and the X Server can act as clients to remote font servers.

XDM does not verify whether the pam_setcred function call succeeds, which may allow attackers to gain root privileges by triggering error conditions within PAM modules, as demonstrated in certain configurations of the pam_krb5 module. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2003-0690 to this issue.

Users are advised to upgrade to these updated XFree86 4.1.0 packages, which contain backported security patches and are not vulnerable to these issues.


Update the affected packages.

See Also




Plugin Details

Severity: Critical

ID: 12424

File Name: redhat-RHSA-2003-289.nasl

Version: $Revision: 1.22 $

Type: local

Agent: unix

Published: 2004/07/06

Modified: 2016/12/28

Dependencies: 12634

Risk Information

Risk Factor: Critical


Base Score: 10

Temporal Score: 8.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Temporal Vector: CVSS2#E:ND/RL:OF/RC:ND

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:XFree86, p-cpe:/a:redhat:enterprise_linux:XFree86-100dpi-fonts, p-cpe:/a:redhat:enterprise_linux:XFree86-75dpi-fonts, p-cpe:/a:redhat:enterprise_linux:XFree86-ISO8859-15-100dpi-fonts, p-cpe:/a:redhat:enterprise_linux:XFree86-ISO8859-15-75dpi-fonts, p-cpe:/a:redhat:enterprise_linux:XFree86-ISO8859-2-100dpi-fonts, p-cpe:/a:redhat:enterprise_linux:XFree86-ISO8859-2-75dpi-fonts, p-cpe:/a:redhat:enterprise_linux:XFree86-ISO8859-9-100dpi-fonts, p-cpe:/a:redhat:enterprise_linux:XFree86-ISO8859-9-75dpi-fonts, p-cpe:/a:redhat:enterprise_linux:XFree86-Xnest, p-cpe:/a:redhat:enterprise_linux:XFree86-Xvfb, p-cpe:/a:redhat:enterprise_linux:XFree86-cyrillic-fonts, p-cpe:/a:redhat:enterprise_linux:XFree86-devel, p-cpe:/a:redhat:enterprise_linux:XFree86-doc, p-cpe:/a:redhat:enterprise_linux:XFree86-libs, p-cpe:/a:redhat:enterprise_linux:XFree86-tools, p-cpe:/a:redhat:enterprise_linux:XFree86-twm, p-cpe:/a:redhat:enterprise_linux:XFree86-xdm, p-cpe:/a:redhat:enterprise_linux:XFree86-xf86cfg, p-cpe:/a:redhat:enterprise_linux:XFree86-xfs, cpe:/o:redhat:enterprise_linux:2.1

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2003/11/12

Reference Information

CVE: CVE-2003-0690, CVE-2003-0730

BID: 8514, 8635

RHSA: 2003:289