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Home >> Browse Vulnerability Assessment Database >> Debian Local Security Checks >> [DSA1193] DSA-1193-1 xfree86

[DSA1193] DSA-1193-1 xfree86

Vulnerability Assessment Summary DSA-1193-1 xfree86 Detailed Explanation for this Vulnerability Assessment 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 rights, 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. Solution : http://www.debian.org/security/2006/dsa-1193 Network Security Threat Level: High Networks Security ID: Vulnerability Assessment Copyright: This script is (C) 2007 Michel Arboi

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