Mac OS X 10.6.5 upgrades security

Apple released Mac OS X 10.6.5 and Security Update 2010-007 which increases the stability, compatibility, and security of your Mac.

AFP Server
A null pointer dereference exists in AFP Server’s handling of reconnect authentication packets. A remote attacker may cause AFP Server to unexpectedly shutdown. Mac OS X automatically restarts AFP Server after a shutdown. This issue is addressed through improved validation of reconnect packets.

A directory traversal issue exists in AFP Server, which may allow an authenticated user to create files outside of a share with the permissions of the user. With a system configuration where users are permitted file sharing access only, this may lead to arbitrary code execution. This issue is addressed through improved path validation.

An error handling issue exists in AFP Server. This may allow a remote attacker to determine the existence of an AFP share with a given name. This issue is addressed through improved signaling of error conditions.

Apache mod_perl

A cross-site scripting issue exists in Apache mod_perl’s encoding of HTML output for the /perl-status page. An attacker may leverage this issue to inject arbitrary script code in the context of a web site served by Apache. This issue does not affect the default configuration as mod_perl and its status page are not enabled by default. This issue is addressed by properly escaping HTML output.

Apache
Apache is updated to version 2.2.15 to address several vulnerabilities, the most serious of which may lead to a denial of service.

AppKit
A buffer overflow exists in AppKit. If a string containing bidirectional text is rendered, and it is truncated with an ellipsis, AppKit may apply an inappropriate layout calculation. This could lead to an unexpected application termination or arbitrary code execution. This issue is addressed by avoiding the inappropriate layout calculation.

ATS
A buffer overflow exists in Apple Type Services’ handling of embedded fonts with long names. Viewing or downloading a document containing a maliciously crafted embedded font may lead to arbitrary code execution. This issue is addressed through improved bounds checking.

A stack buffer overflow exists in Apple Type Services’ handling of embedded fonts. Viewing or downloading a document containing a maliciously crafted embedded font may lead to arbitrary code execution. On Mac OS X v10.6 systems this issue is mitigated by the -fstack-protector compiler flag. This issue is addressed through improved bounds checking.

A memory corruption issue exists in Apple Type Services’ handling of embedded fonts. Viewing or downloading a document containing a maliciously crafted embedded font may lead to arbitrary code execution. This issue is addressed through improved bounds checking. This issue does not affect systems prior to Mac OS X v10.6.

A signedness issue exists in Apple Type Services’ handling of Compact Font Format (CFF) fonts. Viewing or downloading a document containing a maliciously crafted embedded CFF font may lead to arbitrary code execution. This issue is addressed through improved handling of CFF fonts. This issue does not affect Mac OS X v10.6 systems.

CFNetwork
A stack overflow exists in CFNetwork’s URL handling code. Visiting a maliciously crafted website may lead to an unexpected application termination or arbitrary code execution. This issue is addressed through improved bounds checking.

An implementation issue exists in CFNetwork’s handling of domain specifications in cookies. CFNetwork allows cookies to be set for a partial IP address. A maliciously crafted website may set a cookie that will be sent to a third-party site, if the third-party site is accessed by IP address. This update addresses the issue by through improved validation of domains specified in cookies.

CoreGraphics
A stack buffer overflow exists in CoreGraphics’ handling of PDF files. Opening a maliciously crafted PDF file may lead to an unexpected application termination. On 32-bit systems, it may also lead to arbitrary code execution. This update addresses the issues through improved bounds and error checking.

CoreText
A memory corruption issue exists in CoreText’s handling of font files. Viewing a maliciously crafted PDF file may lead to an unexpected application termination or arbitrary code execution. This issue is addressed through improved validation of font files.

CUPS
A memory corruption issue exists in the handling of Internet Printing Protocol (IPP) requests in CUPS. By sending a maliciously crafted IPP request, a remote attacker may cause an unexpected application termination or arbitrary code execution. This issue is addressed through improved memory management. This issue may only be triggered remotely on systems with Printer Sharing enabled. Printer Sharing is not enabled by default.

Directory Services
An error handling issue exists in Directory Service. A local attacker with knowledge of the name of a disabled mobile account, or a mobile account that allows a limited number of login failures, may bypass the password validation and log in to the account. This issue is addressed through improved handling of disabled accounts.

A stack buffer overflow exists in Directory Services’ password validation. An attacker may be able to cause an unexpected application termination or arbitrary code execution. This issue is addressed through improved bounds checking.

diskdev_cmds
An implementation issue exists fsck_hfs’ handling of directory trees. A local user may be able to prevent the system from starting properly. This issue is addressed through improved validation of directory trees.

Disk Images
Opening a maliciously crafted disk image may lead to an unexpected application termination or arbitrary code execution

A memory corruption issue exists in processing UDIF disk images. Opening a maliciously crafted disk image may lead to an unexpected application termination or arbitrary code execution. This issue is addressed through improved validation of UDIF disk images.

Flash Player plug-in
Multiple issues exist in the Adobe Flash Player plug-in, the most serious of which may lead to arbitrary code execution. The issues are addressed by updating the Flash Player plug-in to version 10.1.102.64.

gzip
An integer overflow exists in gzip’s handling of archives that use LZW compression. Extracting a maliciously crafted archive may lead to an unexpected application termination or arbitrary code execution. This issue is addressed through improved bounds checking. This issue does not affect systems prior to Mac OS X v10.6.

A buffer overflow exists in gzip. Extracting a maliciously crafted archive may lead to an unexpected application termination or arbitrary code execution. This issue is addressed through improved memory management.

Image Capture
A unbounded memory consumption issue exists in Image Capture. Downloading a maliciously crafted image may lead to an unexpected system shutdown. This issue is addressed through improved input validation. This issue does not affect systems prior to Mac OS X v10.6.

ImageIO
Multiple memory corruption issues exist in ImageIO’s handling of PSD images. Viewing a maliciously crafted PSD image may lead to an unexpected application termination or arbitrary code execution. These issues are addressed through improved validation of PSD images. Credit to Dominic Chell of NGSSoftware for reporting one of these issues.

A heap buffer overflow exists in the handling of TIFF Images. Viewing a maliciously crafted TIFF image may lead to an unexpected application termination or arbitrary code execution. This issue is addressed through improved bounds checking.

libpng is updated to version 1.4.3 to address multiple vulnerabilities, the most serious of which may lead to arbitrary code execution.

Image RAW
A heap buffer overflow exists in Image RAW’s handling of images. Viewing a maliciously crafted RAW image may lead to an unexpected application termination or arbitrary code execution. This issue is addressed through improved bounds checking.

Kernel
A memory management issue in the handling of terminal devices may allow a local user to cause an unexpected system shutdown. This issue is addressed through improved memory management.

MySQL
MySQL is updated to version 5.0.91 to address multiple vulnerabilities, the most serious of which may lead to arbitrary code execution. MySQL is only provided with Mac OS X Server systems.

neon
neon is updated to version 0.28.6 to address several vulnerabilities, the most serious of which may allow a man-in-the-middle attacker to redirect connections and intercept user credentials or other sensitive information.

Networking
A null pointer dereference issue exists in the handling of Protocol Independent Multicast (PIM) packets. By sending a maliciously crafted PIM packet, a remote attacker may cause an unexpected system shutdown. This issue is addressed through improved validation of PIM packets. This issue does not affect systems prior to Mac OS X v10.6.2.

OpenLDAP
A memory management issue exists in OpenLDAP. By sending a maliciously crafted query an attacker may cause a denial of service or arbitrary code execution. This issue is addressed through improved memory management.

A null pointer dereference exists in OpenLDAP. By sending a maliciously crafted query an attacker may cause a denial of service. This issue is addressed through improved memory management.

OpenSSL
An arithmetic issue exists in OpenSSL’s certificate validation. A remote user may bypass certificate validation steps, and cause OpenSSL to accept any certificate signed by a trusted root as valid. This issue is addressed through improved certificate validation. This issue does not affect systems prior to Mac OS X v10.6. This issue only affects the Mac OS X distribution of OpenSSL.

Password Server
An implementation issue in Password Server’s handling of replication may cause passwords to not be replicated. A remote attacker may be able to log in to a system using an outdated password. This issue is addressed through improved handling of password replication. This issue only affects Mac OS X Server systems.

PHP
PHP is updated to version 5.3.3 to address multiple vulnerabilities, the most serious of which may lead to arbitrary code execution.

PHP is updated to version 5.2.14 to address multiple vulnerabilities, the most serious of which may lead to arbitary code execution.

Printing
A null dereference issue exists in the PMPageFormatCreateWithDataRepresentation API’s handling of XML data. Applications that use this API may be vulnerable to an unexpected application termination. This issue is addressed through improved handling of XML data.

python
Multiple integer overflows exists in python’s rgbimg and audioop modules. Python applications using the rgbimg and audioop modules may be vulnerable to an unexpected application termination or arbitrary code execution. These issues are addressed through improved bounds checking.

QuickLook
A buffer overflow exists in QuickLook’s handling of Microsoft Office files. Downloading a maliciously crafted Microsoft Office file may lead to an unexpected application termination or arbitrary code execution. This update addresses the issue through improved bounds checking.

A memory corruption issue exists in QuickLook’s handling of Excel files. Downloading a maliciously crafted Excel file may lead to an unexpected application termination or arbitrary code execution. This issue is addressed through improved bounds checking. This issue does not affect systems prior to Mac OS X v10.6.

QuickTime
A heap buffer overflow exists in QuickTime’s handling of JP2 images. Viewing a maliciously crafted JP2 image may lead to an unexpected application termination or arbitrary code execution. This issue is addressed through improved bounds checking.

An uninitialized memory access issue exists in QuickTime’s handling of JP2 images. Viewing a maliciously crafted JP2 image may lead to an unexpected application termination or arbitrary code execution. This issue is addressed through improved validation of JP2 images.

A memory corruption issue is in QuickTime’s handling of avi files. Viewing a maliciously crafted avi file may lead to an unexpected application termination or arbitrary code execution. This issue is addressed through improved handling of avi files.

A memory corruption issue exists in QuickTime’s handling of movie files. Viewing a maliciously crafted movie file may lead to an unexpected application termination or arbitrary code execution. This issue is addressed through improved handling of movie files.

A buffer overflow exists in QuickTime’s handling of MPEG encoded movie files. Viewing a maliciously crafted movie file may lead to an unexpected application termination or arbitrary code execution. This issue is addressed through improved bounds checking.

A signedness issue exists in QuickTime’s handling of MPEG encoded movie files. Viewing a maliciously crafted movie file may lead to an unexpected application termination or arbitrary code execution. This issue is addressed through improved handling of MPEG encoded movie files.

A memory corruption issue exists in the handling of Sorenson encoded movie files. Viewing a maliciously crafted movie file may lead to an unexpected application termination or arbitrary code execution. This issue is addressed through improved validation of Sorenson encoded movie files.

An uninitialized memory access issue exists in QuickTime’s handling of FlashPix images. Viewing a maliciously crafted FlashPix image may lead to an unexpected application termination or arbitrary code execution. This issue is addressed through improved memory management.

An uninitialized memory access issue exists in QuickTime’s handling of GIF images. Viewing a maliciously crafted GIF image may lead to an unexpected application termination or arbitrary code execution. This issue is addressed through improved memory management.

Safari RSS
Java applets are allowed in RSS feeds. Since Java applets can modify the loading DOM, accessing a maliciously crafted “feed:” URL may lead to the disclosure of sensitive information. This issue is addressed by disallowing Java applets in RSS feeds.

Time Machine
The user may designate a remote AFP volume to be used for Time Machine backups. Time Machine does not verify that the same physical device is being used for subsequent backup operations. An attacker who is able to spoof the remote AFP volume can gain access to the user’s backup information. This issue is addressed by verifying the unique identifier associated with a disk for backup operations. This issue does not affect Mac OS X v10.5 systems.

Wiki Server
A JavaScript injection issue exists in Wiki Server. A user who can edit wiki pages may obtain the credentials of any user who visits the edited pages. This issue is addressed through improved input validation. This issue only affects Mac OS X Server systems.

X11
Multiple vulnerabilities exist in libpng version 1.2.42, the most serious of which may lead to arbitrary code execution. These issues are addressed by updating to version 1.2.44.

Multiple vulnerabilities exist in FreeType 2.3.9, the most serious of which may lead to arbitrary code execution when processing a maliciously crafted font. These issues are addressed by updating FreeType to version 2.4.2.

xar
A heap buffer overflow exists in xar. Extracting a maliciously crafted xar archive may lead to an unexpected application termination or arbitrary code execution. This issue is addressed through improved bounds checking. This issue does not affect systems prior to Mac OS X v10.6.




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