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APPLE-SA-2006-11-28 Security Update 2006-007
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APPLE-SA-2006-11-28 Security Update 2006-007



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APPLE-SA-2006-11-28 Security Update 2006-007

Security Update 2006-007 is now available and provides fixes for the
following security issues:

AirPort
CVE-ID:  CVE-2006-5710
Available for:  Mac OS X v10.3.9, Mac OS X Server v10.3.9,
Mac OS X v10.4.8, Mac OS X Server v10.4.8
Impact:  Attackers on the wireless network may cause arbitrary
code execution
Description:  A heap buffer overflow exists in the AirPort
wireless driver's handling of probe response frames. An attacker
in local proximity may be able to trigger the overflow by
sending maliciously-crafted information elements in probe
responses. This issue affects eMac, iBook, iMac, PowerBook G3,
PowerBook G4, and Power Mac G4 systems equipped with an original
AirPort card. This issue does not affect systems with the
AirPort Extreme card. This update addresses the issue by
performing additional validation of probe response frames.
Credit to H D Moore of Metasploit for reporting this issue.

ATS
CVE-ID:  CVE-2006-4396
Available for:  Mac OS X v10.3.9, Mac OS X Server v10.3.9,
Mac OS X v10.4.8, Mac OS X Server v10.4.8
Impact:  Local users may be able overwrite or create files with
system privileges
Description:  The Apple Type Services server insecurely creates
error log files. As a result, a malicious local user may be able
to overwrite or create files with system privileges. This update
addresses the issue by creating error logs securely.

ATS
CVE-ID:  CVE-2006-4398
Available for:  Mac OS X v10.4.8, Mac OS X Server v10.4.8
Impact:  Local users may be able to run arbitrary code with
raised privileges
Description:  Multiple buffer overflows were discovered in Apple
Type Services server. By sending a maliciously-crafted service
request, a local user may trigger these overflows. This may lead
to a crash or arbitrary code execution with system privileges.
This update addresses the issue by performing additional
validation on service requests. This issue does not affect
systems prior to Mac OS X v10.4.

ATS
CVE-ID:  CVE-2006-4400
Available for:  Mac OS X v10.3.9, Mac OS X Server v10.3.9,
Mac OS X v10.4.8, Mac OS X Server v10.4.8
Impact:  Viewing maliciously-crafted font files may lead to
arbitrary code execution
Description:  The Apple Type Services server contains a stack
buffer overflow in font processing. By carefully crafting a
corrupt font file, an attacker can trigger the buffer overflow
which may lead to a crash or arbitrary code execution with
system privileges. Font files are processed when opened or
previewed in Finder. This update addresses the issue by
performing additional validation of font files.

CFNetwork
CVE-ID:  CVE-2006-4401
Available for:  Mac OS X v10.3.9, Mac OS X Server v10.3.9,
Mac OS X v10.4.8, Mac OS X Server v10.4.8
Impact:  Visiting FTP URIs may inject arbitrary FTP commands
Description:  By enticing a user to access a maliciously-crafted
FTP URI, an attacker can cause the user's FTP client to issue
arbitrary FTP commands to any accessible FTP server, using the
credentials of the victim. This issue may also facilitate
attacks of other line oriented protocols, such as SMTP. This
update addresses the issue by performing additional validation
of URIs.

ClamAV
CVE-ID:  CVE-2006-4182
Available for:  Mac OS X Server v10.4.8
Impact:  Processing maliciously-crafted email messages with
ClamAV may lead to arbitrary code execution
Description:  ClamAV is updated to version 0.88.5 to address
several security issues. ClamAV was introduced in Mac OS X
Server v10.4 for email scanning. The most severe of these issues
could lead to arbitrary code execution with the privileges of
ClamAV. Further information is available on the ClamAV project
web site (www.clamav.net).

Finder
CVE-ID:  CVE-2006-4402
Available for:  Mac OS X v10.3.9, Mac OS X Server v10.3.9,
Mac OS X v10.4.8, Mac OS X Server v10.4.8
Impact:  Browsing a shared directory may lead to an application
crash or arbitrary code execution
Description:  A heap buffer overflow may be triggered when the
Finder is used to browse a directory containing a corrupt
".DS_Store" file. By enticing a user to browse a directory
containing a maliciously-crafted ".DS_Store" file, an attacker
may be able to trigger the overflow. This could lead to an
application crash or arbitrary code execution with the
privileges of the user running Finder. ".DS_Store" files may be
included in archives, on disk images, and on network file
systems. This update addresses the issue by performing
additional validation of ".DS_Store" files.

ftpd
CVE-ID:  CVE-2006-4403
Available for:  Mac OS X v10.3.9
Impact:  When FTP Access is enabled, unauthorized users may
determine account name validity
Description:  When attempting to authenticate a valid user, the
FTP server may crash during a failed login attempt. The crash
does not occur when attempting to authenticate unknown users.
This behavior can be used to determine if an account name is
valid. This issue is addressed by resolving the crash condition.
FTP Access is not enabled by default. Mac OS X Server v10.3.9,
Mac OS X v10.4, Mac OS X Server v10.4, and later systems are not
affected. Credit to Benjamin Williams of the University of
Canterbury for reporting this issue.

gnuzip
CVE-ID:  CVE-2006-4334, CVE-2006-4335, CVE-2006-4336,
CVE-2006-4337, CVE-2006-4338
Available for:  Mac OS X v10.3.9, Mac OS X Server v10.3.9,
Mac OS X v10.4.8, Mac OS X Server v10.4.8
Impact:  Uncompressing a file with gunzip may lead to an
application crash or arbitrary code execution
Description:  By carefully crafting a malicious compressed file,
an attacker may be able to trigger any of several
vulnerabilities in gunzip when the file is processed. The most
severe of these issues could lead to an application crash or
arbitrary code execution. Many applications use the gunzip
command for decompression, including command-line tools such as
tar and services such as Mail Server. This update addresses the
issue by performing additional validation of compressed files.
Credit to Tavis Ormandy of the Google Security Team for
reporting this issue.

Installer
CVE-ID:  CVE-2006-4404
Available for:  Mac OS X v10.3.9, Mac OS X Server v10.3.9,
Mac OS X v10.4.8, Mac OS X Server v10.4.8
Impact:  When installing software as an Admin user, system
privileges may be used without explicit authorization
Description:  Admin users are normally required to authenticate
before executing commands with system privileges. However, the
Installer allows system privileges to be used by Admin users
when installing certain packages without requiring
authentication. This update addresses the issue by requiring
authentication before installing software with system
privileges.

OpenSSL
CVE-ID:  CVE-2006-2937, CVE-2006-2940, CVE-2006-3738,
CVE-2006-4339, CVE-2006-4343
Available for:  Mac OS X v10.3.9, Mac OS X Server v10.3.9,
Mac OS X v10.4.8, Mac OS X Server v10.4.8
Impact:  Multiple vulnerabilities in OpenSSL
Description:  OpenSSL is updated to version 0.9.7l to address
several critical vulnerabilities. The most severe of these
vulnerabilities may lead to impersonation of services using SSL
or TLS, or to arbitrary code execution. Further information is
available via OpenSSL advisories at http://www.openssl.org/news/
vulnerabilities.html.

perl
CVE-ID:  CVE-2005-3962
Available for:  Mac OS X v10.3.9, Mac OS X Server v10.3.9,
Mac OS X v10.4.8, Mac OS X Server v10.4.8
Impact:  Perl applications with unsafe string handling may be
vulnerable to arbitrary code execution
Description:  An integer overflow exists in Perl's format string
functionality. This integer overflow may lead to arbitrary code
execution in Perl applications which use format strings
unsafely. This update addresses the issue by performing
additional validation of uses of format strings.

PHP
CVE-ID:  CVE-2006-1490, CVE-2006-1990
Available for:  Mac OS X v10.3.9, Mac OS X Server v10.3.9,
Mac OS X v10.4.8, Mac OS X Server v10.4.8
Impact:  PHP applications may be vulnerable to denial of service
or arbitrary code execution
Description:  PHP is updated to version 4.4.4 to address several
security issues in the Apache module and scripting environment.
Applications using affected APIs may be vulnerable. The most
severe of the vulnerabilities may lead to arbitrary code
execution. Further information is available on the PHP project
web site (www.php.net).

PHP
CVE-ID:  CVE-2006-5465
Available for:  Mac OS X v10.3.9, Mac OS X Server v10.3.9,
Mac OS X v10.4.8, Mac OS X Server v10.4.8
Impact:  PHP applications may be vulnerable to arbitrary code
execution
Description:  Buffer overflows exist in the htmlentities() and
htmlspecialchars() functions. These buffer overflows may lead to
arbitrary code execution in applications using the affected
APIs. This update addresses the issue by performing additional
validation of input to the affected APIs.

PPP
CVE-ID:  CVE-2006-4406
Available for:  Mac OS X v10.3.9, Mac OS X Server v10.3.9,
Mac OS X v10.4.8, Mac OS X Server v10.4.8
Impact:  Using PPPoE on an untrusted local network may lead to
arbitrary code execution
Description:  When PPPoE is enabled, an attacker on the local
network may be able to trigger a buffer overflow. This could
lead to a system crash or arbitrary code execution with system
privileges. This update addresses the issue by performing better
validation on PPPoE traffic. PPPoE is not enabled by default.
Credit to the Mu Security research team for reporting this
issue.

Samba
CVE-ID:  CVE-2006-3403
Available for:  Mac OS X v10.3.9, Mac OS X Server v10.3.9,
Mac OS X v10.4.8, Mac OS X Server v10.4.8
Impact:  When Windows Sharing is enabled, remote attackers may
cause a denial of service
Description:  The list of active connections tracked by Windows
Sharing may grow unbounded. An attacker may be able to create
many connections, leading to memory exhaustion and a denial of
service. This update addresses the issue by limiting the number
of active connections. Windows Sharing is not enabled by
default.

Security Framework
CVE-ID:  CVE-2006-4407
Available for:  Mac OS X v10.3.9, Mac OS X Server v10.3.9
Impact:  Secure Transport may not negotiate the best cipher
available
Description:  Secure Transport provides the ability to encrypt
and authenticate data using several ciphers. When a connection
is made, the best mutually-supported cipher should be used. Due
to the order they are evaluated, it is possible for Secure
Transport to use a cipher that provides no encryption or
authentication when better ciphers are available. This update
addresses the issue by giving priority to better ciphers.
Applications using Secure Transport through CFNetwork, such as
Safari, are not affected by this issue on systems with Security
Update 2006-006 or later. This issue does not affect systems
using Mac OS X v10.4.8 and later. Credit to Eric Cronin of
gizmolabs for reporting this issue.

Security Framework
CVE-ID:  CVE-2006-4408
Available for:  Mac OS X v10.4.8, Mac OS X Server v10.4.8
Impact:  Processing X.509 certificates may lead to a denial of
service
Description:  It is possible to create an X.509 certificate
containing a public key that could consume a significant amount
of system resources during signature verification. An attacker
may cause a system to process such a certificate, leading to a
denial of service. This issue does not affect systems prior to
Mac OS X v10.4. Credit to Dr. Stephen N. Henson of Open Network
Security for reporting this issue, and to NISCC for
coordinating.

Security Framework
CVE-ID:  CVE-2006-4409
Available for:  Mac OS X v10.4.8, Mac OS X Server v10.4.8
Impact:  When using an HTTP proxy, certificate revocation lists
cannot be retrieved
Description:  On systems that are configured to use an HTTP
proxy, the Online Certificate Status Protocol (OCSP) service is
unable to retrieve certificate revocation lists. This update
addresses this issue by using the system proxy settings in
ocpsd. This issue does not affect systems prior to Mac OS X
v10.4. Credit to Timothy J. Miller of the MITRE Corporation for
reporting this issue.

Security Framework
CVE-ID:  CVE-2006-4410
Available for:  Mac OS X v10.3.9, Mac OS X Server v10.3.9
Impact:  Certain revoked certificates may be erroneously honored
Description:  The revocation list from an issuing authority may
not be consulted for certain leaf certificates. This update
addresses the issue through improved handling of the certificate
revocation list. This issue does not affect Mac OS X v10.4.7 and
later systems. Credit to Jose Nazario of Arbor Networks for
reporting this issue.

VPN
CVE-ID:  CVE-2006-4411
Available for:  Mac OS X v10.3.9, Mac OS X Server v10.3.9,
Mac OS X v10.4.8, Mac OS X Server v10.4.8
Impact:  Malicious local users may gain system privileges
Description:  Under certain circumstances, the VPN server may
execute commands without properly cleaning the environment. This
may allow a malicious local user to create files or execute
commands with system privileges. This update addresses the issue
by ignoring the user's environment when executing commands.

WebKit
CVE-ID:  CVE-2006-4412
Available for:  Mac OS X v10.3.9, Mac OS X Server v10.3.9,
Mac OS X v10.4.8, Mac OS X Server v10.4.8
Impact:  Visiting a malicious web site may lead to arbitrary code
execution
Description:  A maliciously-crafted HTML document could cause a
previously deallocated object to be accessed. This may lead to
an application crash or arbitrary code execution. This update
addresses the issue by properly handling such documents. Credit
to Tom Ferris of Security-Protocols for reporting this issue.

Security Update 2006-007 may be obtained from the Software Update
pane in System Preferences, or Apple's Software Downloads web site:
http://www.apple.com/support/downloads/

For Mac OS X v10.3.9
The download file is named:  "SecUpd2006-007Pan.dmg"
Its SHA-1 digest is:  b4c9190964cf4f9f674ab7f8cbd2c1cbe196cb2d

For Mac OS X v10.4.8 (PowerPC)
The download file is named:  "SecUpd2006-007Ti.dmg"
Its SHA-1 digest is:  994b13d0c36b18f3d30e2c0849b023393d714ef6

For Mac OS X v10.4.8 (Intel)
The download file is named:  "SecUpd2006-007Intel.dmg"
Its SHA-1 digest is:  a90bf763dc381f61839d6f55cdf3d5dd710d327f

For Mac OS X Server v10.3.9
The download file is named:  "SecUpdSrvr2006-007Pan.dmg"
Its SHA-1 digest is:  4bd756bfa7b1fe927d34fc7a377a4b010008b866

For Mac OS X Server v10.4.8 (PowerPC)
The download file is named:  "SecUpdSrvr2006-007Ti.dmg"
Its SHA-1 digest is:  0fa7e1041dd5a61393996a09081190d3343d7f34

For Mac OS X Server v10.4.8 (Universal)
The download file is named:  "SecUpdSrvr2006-007Universal.dmg"
Its SHA-1 digest is:  b9987a0fa591ccfd467b1ebec85367b140b8d789

Information will also be posted to the Apple Security Updates
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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