Package : xfree86 Vulnerability : several Problem-Type : local(remote) Debian-specific: no CVE ID : CVE-2006-3467 CVE-2006-3739 CVE-2006-3740 CVE-2006-4447
Several vulnerabilities have been discovered in the X Window System, which may lead to the execution of arbitrary code or denial of service. The Common Vulnerabilities and Exposures project identifies the following problems:
Chris Evan discovered an integer overflow in the code to handle PCF fonts, which might lead to denial of service if a malformed font is opened.
It was discovered that an integer overflow in the code to handle Adobe Font Metrics might lead to the execution of arbitrary code.
It was discovered that an integer overflow in the code to handle CMap and CIDFont font data might lead to the execution of arbitrary code.
The XFree86 initialization code performs insufficient checking of the return value of setuid() when dropping privileges, which might lead to local privilege escalation.
For the stable distribution (sarge) these problems have been fixed in version 4.3.0.dfsg.1-14sarge2. This release lacks builds for the Motorola 680x0 architecture, which failed due to diskspace constraints on the build host. They will be released once this problem has been resolved.
For the unstable distribution (sid) these problems have been fixed in version 1:1.2.2-1 of libxfont and version 1:1.0.2-9 of xorg-server.
We recommend that you upgrade your XFree86 packages.
Upgrade Instructions - --------------------
wget url will fetch the file for you dpkg -i file.deb will install the referenced file.
If you are using the apt-get package manager, use the line for sources.list as given below:
apt-get update will update the internal database apt-get upgrade will install corrected packages
You may use an automated update by adding the resources from the footer to the proper configuration.
Debian GNU/Linux 3.1 alias sarge - --------------------------------