Executive Summary



This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Summary
Title NX 2.1: User-assisted execution of arbitrary code
Informations
Name GLSA-200710-09 First vendor Publication 2007-10-09
Vendor Gentoo Last vendor Modification 2007-10-09
Severity (Vendor) Normal Revision N/A

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:P/I:P/A:P)
Cvss Base Score 7.5 Attack Range Network
Cvss Impact Score 6.4 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Synopsis

NX in the 2.1 series uses XFree86 4.3 code which is prone to an integer overflow vulnerability.

Background

NoMachine's NX establishes remote connections to X11 desktops over small bandwidth links. NX and NX Node are the compression core libraries, whereas NX is used by FreeNX and NX Node by the binary-only NX servers.

Description

Chris Evans reported an integer overflow within the FreeType PCF font file parser (CVE-2006-1861). NX and NX Node are vulnerable to this due to shipping XFree86 4.3.0, which includes the vulnerable FreeType code.

Impact

A remote attacker could exploit these integer overflows by enticing a user to load a specially crafted PCF font file which might lead to the execution of arbitrary code with the privileges of the user on the machine running the NX server.

Workaround

There is no known workaround at this time.

Resolution

All NX users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/nx-3.0.0"

All NX Node users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/nxnode-3.0.0-r3"

References

[ 1 ] CVE-2006-1861 : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-1861
[ 2 ] GLSA 200607-02 : http://www.gentoo.org/security/en/glsa/glsa-200607-02.xml

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website:

http://security.gentoo.org/glsa/glsa-200710-09.xml

Original Source

Url : http://security.gentoo.org/glsa/glsa-200710-09.xml

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-189 Numeric Errors (CWE/SANS Top 25)

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:9124
 
Oval ID: oval:org.mitre.oval:def:9124
Title: Multiple integer overflows in FreeType before 2.2 allow 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. NOTE: item 4 was originally identified by CVE-2006-2493.
Description: Multiple integer overflows in FreeType before 2.2 allow 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. NOTE: item 4 was originally identified by CVE-2006-2493.
Family: unix Class: vulnerability
Reference(s): CVE-2006-1861
 Version: 5
Platform(s): Red Hat Enterprise Linux 3
CentOS Linux 3
Red Hat Enterprise Linux 4
CentOS Linux 4
Oracle Linux 4
 Product(s):
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 9

OpenVAS Exploits

Date Description
2011-08-09 Name : CentOS Update for freetype CESA-2009:0329 centos3 i386
File : nvt/gb_CESA-2009_0329_freetype_centos3_i386.nasl
2011-03-09 Name : Gentoo Security Advisory GLSA 201006-01 (freetype)
File : nvt/glsa_201006_01.nasl
2010-05-12 Name : Mac OS X Security Update 2009-001
File : nvt/macosx_secupd_2009-001.nasl
2009-06-05 Name : Fedora Core 10 FEDORA-2009-5558 (freetype1)
File : nvt/fcore_2009_5558.nasl
2009-06-05 Name : Fedora Core 11 FEDORA-2009-5644 (freetype1)
File : nvt/fcore_2009_5644.nasl
2009-05-25 Name : RedHat Security Advisory RHSA-2009:0329
File : nvt/RHSA_2009_0329.nasl
2009-05-25 Name : RedHat Security Advisory RHSA-2009:1062
File : nvt/RHSA_2009_1062.nasl
2009-05-25 Name : CentOS Security Advisory CESA-2009:0329 (freetype)
File : nvt/ovcesa2009_0329.nasl
2008-09-24 Name : Gentoo Security Advisory GLSA 200607-02 (FreeType)
File : nvt/glsa_200607_02.nasl
2008-09-24 Name : Gentoo Security Advisory GLSA 200710-09 (nx, nxnode)
File : nvt/glsa_200710_09.nasl
2008-09-04 Name : FreeBSD Ports: freetype2
File : nvt/freebsd_freetype2.nasl
2008-01-17 Name : Debian Security Advisory DSA 1095-1 (freetype)
File : nvt/deb_1095_1.nasl
0000-00-00 Name : Slackware Advisory SSA:2006-207-02 x11
File : nvt/esoft_slk_ssa_2006_207_02.nasl

Open Source Vulnerability Database (OSVDB)

Id Description
41726 FreeType cff/cffgload.c Unspecified Overflow
41725 FreeType sfnt/ttcmap.c Unspecified Overflow
41724 FreeType bdf/bdflib.c Unspecified Overflow
25654 FreeType base/ftmac.c read_lwfn() Function LWFN File Handling Overflow

Nessus® Vulnerability Scanner

Date Description
2013-07-12 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2009-0329.nasl - Type : ACT_GATHER_INFO
2012-08-01 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20090522_freetype_on_SL3_x.nasl - Type : ACT_GATHER_INFO
2010-06-02 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-201006-01.nasl - Type : ACT_GATHER_INFO
2009-05-28 Name : The remote Fedora host is missing a security update.
File : fedora_2009-5558.nasl - Type : ACT_GATHER_INFO
2009-05-28 Name : The remote Fedora host is missing a security update.
File : fedora_2009-5644.nasl - Type : ACT_GATHER_INFO
2009-05-23 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2009-0329.nasl - Type : ACT_GATHER_INFO
2009-05-23 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2009-1062.nasl - Type : ACT_GATHER_INFO
2009-05-23 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2009-0329.nasl - Type : ACT_GATHER_INFO
2009-02-13 Name : The remote host is missing a Mac OS X update that fixes various security issues.
File : macosx_SecUpd2009-001.nasl - Type : ACT_GATHER_INFO
2007-11-10 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-291-1.nasl - Type : ACT_GATHER_INFO
2007-10-18 Name : The remote openSUSE host is missing a security update.
File : suse_NX-4555.nasl - Type : ACT_GATHER_INFO
2007-10-17 Name : The remote openSUSE host is missing a security update.
File : suse_freetype2-1608.nasl - Type : ACT_GATHER_INFO
2007-10-12 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-200710-09.nasl - Type : ACT_GATHER_INFO
2006-12-16 Name : The remote Mandrake Linux host is missing one or more security updates.
File : mandrake_MDKSA-2006-129.nasl - Type : ACT_GATHER_INFO
2006-10-14 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-1095.nasl - Type : ACT_GATHER_INFO
2006-10-05 Name : The remote FreeBSD host is missing a security-related update.
File : freebsd_pkg_b975763f521011db8f1a000a48049292.nasl - Type : ACT_GATHER_INFO
2006-07-28 Name : The remote Slackware host is missing a security update.
File : Slackware_SSA_2006-207-02.nasl - Type : ACT_GATHER_INFO
2006-07-19 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2006-0500.nasl - Type : ACT_GATHER_INFO
2006-07-19 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2006-0500.nasl - Type : ACT_GATHER_INFO
2006-07-10 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-200607-02.nasl - Type : ACT_GATHER_INFO
2006-06-16 Name : The remote Mandrake Linux host is missing one or more security updates.
File : mandrake_MDKSA-2006-099.nasl - Type : ACT_GATHER_INFO

Alert History

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Date Informations
2014-02-17 11:35:10
  • Multiple Updates