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If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important. If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery.
Vulnerability Assessment Details
Check for the version of the freetype2 package
Detailed Explanation for this Vulnerability Assessment
The remote host is missing the patch for the advisory MDKSA-2006:099-1 (freetype2).
Integer underflow in Freetype before 2.2 permits remote attackers to cause
a denial of service (crash) via a font file with an odd number of blue
values, which causes the underflow when decrementing by 2 in a context
that assumes an even number of values. (CVE-2006-0747)
Multiple integer overflows in FreeType before 2.2 permit remote attackers to
cause a denial of service (crash) and possibly execute arbitrary code via
attack vectors related to (1) bdf/bdflib.c, (2) sfnt/ttcmap.c,
(3) cff/cffgload.c, and (4) the read_lwfn function and a crafted LWFN file
in base/ftmac.c. (CVE-2006-1861)
Ftutil.c in Freetype before 2.2 permits remote attackers to cause a denial
of service (crash) via a crafted font file that triggers a null dereference.
In addition, a patch is applied to 2.1.10 in Mandriva 2006 to fix a serious
bug in ttkern.c that caused some programs to go into an infinite loop when
dealing with fonts that don't have a properly sorted kerning sub-table.
This patch is not applicable to the earlier Mandriva releases.
The previous update introduced some issues with other applications and
libraries linked to libfreetype, that were missed in testing for the
vulnerabilty issues. The new packages correct these issues.
Solution : http://wwwnew.mandriva.com/security/advisories?name=MDKSA-2006:099-1
Network Security Threat Level: High
Networks Security ID:
Vulnerability Assessment Copyright: This script is Copyright (C) 2006 Tenable Network Security
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