Apple's summary of changes
CoreAudio - Playing a maliciously crafted mp4 audio file may lead to an unexpected application termination or arbitrary code execution
A buffer overflow exists in the handling of mp4 audio files. Playing a maliciously crafted mp4 audio file may lead to an unexpected application termination or arbitrary code execution. This issue is addressed through improved bounds checking. Credit to Tobias Klein of trapkit.de for reporting this issue.
CUPS - A remote attacker may cause an unexpected application termination of cupsd
A use-after-free issue exists in cupsd. By issuing a maliciously crafted get-printer-jobs request, an attacker may cause a remote denial of service. This is mitigated through the automatic restart of cupsd after its termination. This issue is addressed through improved connection use tracking.
Flash Player plug-in - Multiple vulnerabilities in Adobe 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 when viewing a maliciously crafted web site. The issues are addressed by updating the Flash Player plug-in to version 10.0.42. Further information is available via the Adobe web site at
http://www.adobe.com/support/security/bulletins/apsb09-19.html Credit to an anonymous researcher and Damian Put working with TippingPoints Zero Day Initiative, Bing Liu of Fortinet's FortiGuard Global Security Research Team, Will Dormann of CERT, Manuel Caballero and Microsoft Vulnerability Research (MSVR).
ImageIO - Viewing a maliciously crafted TIFF image may lead to an unexpected application termination or arbitrary code execution
A buffer underflow exists in ImageIO's 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. For Mac OS X v10.6 systems, this issue is addressed in Mac OS X v10.6.2.
Image RAW - Viewing a maliciously crafted DNG image may lead to an unexpected application termination or arbitrary code execution
A buffer overflow exists in Image RAW's handling of DNG images. Viewing a maliciously crafted DNG image may lead to an unexpected application termination or arbitrary code execution. This issue is addressed through improved bounds checking. Credit to Jason Carr of Carnegie Mellon University Computing Services for reporting this issue.
OpenSSL - An attacker with a privileged network position may capture data or change the operations performed in sessions protected by SSL
A man-in-the-middle vulnerability exists in the SSL and TLS protocols. Further information is available at
http://www.phonefactor.com/sslgap A change to the renegotiation protocol is underway within the IETF. This update disables renegotiation in OpenSSL as a preventive security measure. The issue does not affect services using Secure Transport as it does not support renegotiation. Credit to Steve Dispensa and Marsh Ray of PhoneFactor, Inc. for reporting this issue.