X.Org libXcursor '_XcursorFileHeaderCreate()' Function Remote Code Execution Vulnerability

Bugtraq ID:	60121
Class:	Boundary Condition Error
CVE:	CVE-2013-2003
Remote:	Yes
Local:	No
Published:	May 23 2013 12:00AM
Updated:	May 02 2017 12:06AM
Credit:	Ilja van Sprundel of IOActive
Vulnerable:	X.org libXcursor 1.1.13 Ubuntu Ubuntu Linux 13.04 Ubuntu Ubuntu Linux 12.10 Ubuntu Ubuntu Linux 12.04 Sun Solaris 10_x86 Sun Solaris 10_sparc S.u.S.E. openSUSE 12.3 S.u.S.E. openSUSE 12.2 Redhat Enterprise Linux Workstation Optional 6 Redhat Enterprise Linux Workstation 6 Redhat Enterprise Linux Server Optional 6 Redhat Enterprise Linux Server 6 Redhat Enterprise Linux HPC Node Optional 6 Redhat Enterprise Linux HPC Node 6 Redhat Enterprise Linux Desktop Optional 6 Redhat Enterprise Linux Desktop 6 Oracle Solaris 11.1 Oracle Solaris 10 Oracle Secure Global Desktop 4.71 Gentoo Linux Debian Linux 6.0 sparc Debian Linux 6.0 s/390 Debian Linux 6.0 powerpc Debian Linux 6.0 mips Debian Linux 6.0 ia-64 Debian Linux 6.0 ia-32 Debian Linux 6.0 arm Debian Linux 6.0 amd64
Not Vulnerable:	X.org libXcursor 1.1.14 Oracle Solaris 11.1.8.4.0

X.Org libXcursor '_XcursorFileHeaderCreate()' Function Remote Code Execution Vulnerability

The 'libXcursor' library is prone to a remote code-execution vulnerability because it fails to adequately bounds-check user-supplied data.

An attacker can exploit this vulnerability to execute arbitrary code with elevated privileges. Failed exploit attempts will likely cause denial-of-service conditions.

Versions prior to libXcursor 1.1.14 are vulnerable.

X.Org libXcursor '_XcursorFileHeaderCreate()' Function Remote Code Execution Vulnerability

Currently, we are not aware of any exploits. If you feel we are in error or if you are aware of more recent information, please mail us at: [email protected].

X.Org libXcursor '_XcursorFileHeaderCreate()' Function Remote Code Execution Vulnerability

Solution:
Updates are available. Please see the references or vendor advisory for more information.

X.Org libXcursor '_XcursorFileHeaderCreate()' Function Remote Code Execution Vulnerability

References:

• Multiple vulnerabilities in X.org (Oracle)
  
• Bug 959077 - (CVE-2013-2003) libXcursor: Integer overflow leading to heap-based (Red Hat)
  
• libXcursor GIT Page (X.Org)
  
• Protocol handling issues in X Window System client libries (oss-sec)
  
• X.Org Homepage (X.Org)
  
• Oracle Critical Patch Update Advisory - April 2017 (Oracle)
  
• USN-1856-1: libxcursor vulnerability (Ubuntu)
  
• X.Org Security Advisory: Protocol handling issues in X Window System libraries (X.Org)