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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2004.0498 -- APPLE-SA-2004-08-09 Mac OS X 10.3.5 10 August 2004 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: libpng Safari TCP/IP Networking Publisher: Apple Operating System: Mac OS X Impact: Execute Arbitrary Code/Commands Denial of Service Access: Remote/Unauthenticated CVE Names: CAN-2002-1363 CAN-2004-0421 CAN-2004-0597 CAN-2004-0598 CAN-2004-0599 CAN-2004-0743 CAN-2004-0744 Ref: ESB-2004.0497 - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 APPLE-SA-2004-09-09 Mac OS X 10.3.5 Mac OS X 10.3.5 is now available and delivers security enhancements for the following components: Component: libpng (Portable Network Graphics) CVE-IDs: CAN-2002-1363, CAN-2004-0421, CAN-2004-0597, CAN-2004-0598, CAN-2004-0599 Impact: Malicious png images can cause application crashes and could execute arbitrary code Description: A number of buffer overflows, null pointer dereferences and integer overflows have been discovered in the reference library for reading and writing PNG images. These vulnerabilities have been corrected in libpng which is used by the CoreGraphics and AppKit frameworks in Mac OS X. After installing this update, applications that use the PNG image format via these frameworks will be protected against these flaws. Note: The libpng security fixes are also available separately for Mac OS X 10.3.4 and Mac OS X 10.2.8 via Security Update 2004-08-09. ================== Component: Safari CVE ID: CAN-2004-0743 Impact: In a special situation, navigation using the forward/backward buttons can re-send form data to a GET url. Description: This is for a situation where a web form is sent to a server using a POST method which issues an HTTP redirect to a GET method url. Using the forward/backward buttons will cause Safari to re-POST the form data to the GET url. Safari has been modified so that in this situation forward/backward navigation will result in only a GET method. ================== Component: TCP/IP Networking CVE ID: CAN-2004-0744 Impact: Maliciously crafted IP fragments can use too many system resources preventing normal network operation. Description: The "Rose Attack" describes a specially constructed sequence of IP fragments designed to consume system resources. The TCP/IP implementation has been modified to limit the resources consumed and prevents this denial of service attack. ================================================ Mac OS X 10.3.5 may be obtained from the Software Update pane in System Preferences, or Apple's Software Downloads web site: http://www.apple.com/support/downloads/ Information will also be posted to the Apple Product Security web site: http://www.apple.com/support/security/security_updates.html This message is signed with Apple's Product Security PGP key, and details are available at: http://www.apple.com/support/security/security_pgp.html - -----BEGIN PGP SIGNATURE----- Version: PGP 8.1 iQEVAwUBQRgG/5yw5owIz4TQAQJAaQf/TY9HBW+Lbt1Z01UAYquP48kQX9kCFfNn UmlkpKlo909zAthhvXqfPqWjApZ2JPMyjOoGHzRJqKFxtQnzVt+uxz+Vobn4WKQ9 FiIEUnWkYLih+ZCITZ77kSZAObRPZuOz8bYuN0e9jl/YaUVDAE9VLB+UkwHXSptW wEKKktIVK+4mySJTGeGzMK77nM3LLPH4lVLJfXZPTLK9k+AX8yIjqAKzQRQn5Y8g R0tFk3n0TbifOxO4w6J3FAS9xTMPKUyg4zQo+349ssd4yr7D/f1aCwBDxvhLbNsj 5eiD3JUbWxEai3xEXIZddEehCs/wUT6c4dmTO/gJJf+4elg3oaZA4Q== =o3g4 - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/render.html?cid=1980 If you believe that your computer system has been compromised or attacked in any way, we encourage you to let us know by completing the secure National IT Incident Reporting Form at: http://www.auscert.org.au/render.html?it=3192 =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQCVAwUBQRgu0ih9+71yA2DNAQJnrAP+KMjrzR+mWRXbtaRhzHmooIzIaPmKSt8i rhSERVDpaIy3puJ51VDSwr3cSj/3/nLyairUzwaZRkJlF0GGrInm+Z1Yk7gwUrGs v+FRUE+/CLjpr7HRwrxp6mR37hYEOAKLjdIQCyP3J+Sp1Cfyphd4aHwGr/d448RC 37+6g6O8TtI= =An8l -----END PGP SIGNATURE-----