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Category:   Application (Generic)  >   Apple Xcode Vendors:   Apple
Apple Xcode GDB DWARF Binary Bug Lets Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1017138
SecurityTracker URL:  http://securitytracker.com/id/1017138
CVE Reference:   CVE-2006-4146   (Links to External Site)
Date:  Nov 1 2006
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): prior to 2.4.1
Description:   A vulnerability was reported in Apple Xcode. A remote user can cause arbitrary code to be executed on the target user's system.

A remote user can create a specially crafted DWARF binary file that, when loaded by the target user with the GNU Debugger (GDB) component of Xcode, will execute arbitrary code on the target system. The code will run with the privileges of the target user.

Apple credits Will Drewry and Tavis Ormandy of the Google Security Team with reporting this vulnerability.

Impact:   A remote user can create a DWARF binary file that, when loaded by the target user, will execute arbitrary code on the target user's system.
Solution:   The vendor has issued a fixed version (2.4.1), available at:

http://developer.apple.com/tools/download/

The download file is named: "xcode_2.4.1_8m1910_6936315.dmg"
Its SHA-1 digest is: 15204bc175c68c62045521c2b8df00760d1c4efc

The Apple advisory is available at:

http://docs.info.apple.com/article.html?artnum=61798

Vendor URL:  docs.info.apple.com/article.html?artnum=61798 (Links to External Site)
Cause:   Not specified
Underlying OS:  UNIX (macOS/OS X)

Message History:   This archive entry has one or more follow-up message(s) listed below.
May 1 2007 (Red Hat Issues Fix for GDB) Apple Xcode GDB DWARF Binary Bug Lets Remote Users Execute Arbitrary Code
Red Hat has released a fix for GDB on Red Hat Enterprise Linux 4.
Jun 11 2007 (Red Hat Issues Fix for GDB) Apple Xcode GDB DWARF Binary Bug Lets Remote Users Execute Arbitrary Code
Red Hat has released a fix for GDB on Red Hat Enterprise Linux 3.



 Source Message Contents

Subject:  APPLE-SA-2006-10-31 Xcode Tools 2.4.1

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

APPLE-SA-2006-10-31 Xcode Tools 2.4.1

Xcode Tools 2.4.1 is now available.  Along with functionality
improvements (see release notes), it also fixes the following
security issue:

GDB
CVE-ID:  CVE-2006-4146
Available for:  Mac OS X v10.4 and later
Impact:  Opening a maliciously-crafted DWARF binary with GDB may
lead to arbitrary code execution
Description:  GDB, the GNU Debugger, is susceptible to multiple
vulnerabilities that may lead to arbitrary code execution when
loading maliciously-crafted DWARF binaries. This update
addresses the issues by performing additional validation while
handling DWARF binaries. Credit to Will Drewry and Tavis Ormandy
of the Google Security Team for reporting this issue.

Xcode Tools 2.4.1 may be obtained from:
http://developer.apple.com/tools/download/

The download file is named:  "xcode_2.4.1_8m1910_6936315.dmg"
Its SHA-1 digest is:  15204bc175c68c62045521c2b8df00760d1c4efc

Information will also be posted to the Apple Product Security
web site:  http://docs.info.apple.com/article.html?artnum=61798

This message is signed with Apple's Product Security PGP key,
and details are available at:
http://www.apple.com/support/security/pgp/

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