FrSIRT - X.Org X11 "CIDAFM()" and "scan_cidfont()" Local Privilege Escalation Vulnerabilities / Exploit (Security Advisories)

French Security Incident Response Team

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X.Org X11 "CIDAFM()" and "scan_cidfont()" Local Privilege Escalation Vulnerabilities

Title : X.Org X11 "CIDAFM()" and "scan_cidfont()" Local Privilege Escalation Vulnerabilities
Advisory ID : FrSIRT/ADV-2006-3581
CVE ID : CVE-2006-3739 - CVE-2006-3740
Rated as : Moderate Risk

Remotely Exploitable : No
Locally Exploitable : Yes
Release Date : 2006-09-13

Advisory Details

Description

Affected Products

Solution

References

Technical Description

Two vulnerabilities have been identified in X.Org X11, which could be exploited by malicious users to obtain elevated privileges or cause a denial of service [...]

Solution

Upgrade to libXfont version 1.2.2 :
http://xorg.freedesktop.org/releases/individual/lib/

Patch for X.Org 6.8.2 :
http://xorg.freedesktop.org/releases/X11R6.8.2/patches/xorg-68x-cidfonts.patch

Patch for X.Org 6.9.0 :
http://xorg.freedesktop.org/releases/X11R6.9.0/patches/x11r6.9.0-cidfonts.diff

Patch for X.Org 7.0 - libXfont 1.0.0 :
http://xorg.freedesktop.org/releases/X11R7.0/patches/libXfont-1.0.0-cidfonts.diff

Patch for X.Org 7.1 - libXfont 1.1.0 :
http://xorg.freedesktop.org/releases/X11R7.1/patches/libXfont-1.1.0-cidfonts.diff

Credits

Vulnerabilities reported by iDEFENSE

ChangeLog

2006-09-13 : Initial release

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