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ESB-2003.0674 -- Apple Security Advisory -- APPLE-SA-2003-09-22 Mac OS X 10.2.8
23 September 2003
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-----BEGIN PGP SIGNED MESSAGE----- =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2003.0674 -- Apple Security Advisory APPLE-SA-2003-09-22 Mac OS X 10.2.8 23 September 2003 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: OpenSSH Sendmail fb_realpath arplookup Publisher: Apple Operating System: Mac OS X Impact: Reduced Security Access Required: Remote CVE Names: CAN-2003-0466, CAN-2003-0601, CAN-2003-0518, CAN-2003-0693, CAN-2003-0694, CAN-2003-0695, CAN-2003-0681, CAN-2003-0682, CAN-2003-0804 Ref: AL-2003.17 AL-2003.16 ESB-2003.0582 - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 APPLE-SA-2003-09-22 Mac OS X 10.2.8 Mac OS X 10.2.8 is now available. It contains fixes for recent vulnerabilities in: OpenSSH: Mac OS X 10.2.8 contains the patches to address CVE CAN-2003-0693, CAN-2003-0695, and CAN-2003-0682. On Mac OS X versions prior to 10.2.8, the vulnerability is limited to a denial of service from the possibility of causing sshd to crash. Each login session has its own sshd, so established connections are preserved up to the point where system resources are exhausted by an attack. To deliver the update in a rapid and reliable manner, only the patches for CVE IDs listed above were applied, and not the entire set of patches for OpenSSH 3.7.1. Thus, the OpenSSH version in Mac OS X 10.2.8, as obtained via the "ssh -V" command, is: OpenSSH_3.4p1+CAN-2003-0693, SSH protocols 1.5/2.0, OpenSSL 0x0090609f Sendmail: Addresses CVE and CAN-2003-0681 to fix a buffer overflow in address parsing, as well as a potential buffer overflow in ruleset parsing. fb_realpath(): Fixes CAN-2003-0466 which is an off-by-one error in the fb_realpath() function that may allow attackers to execute arbitrary code. arplookup(): Fixes CAN-2003-0804. The arplookup() function caches ARP requests for routes on a local link. On a local subnet only, it is possible for an attacker to send a sufficient number of spoofed ARP requests which will exhaust kernel memory, leading to a denial of service. Mac OS X 10.2.8 may be obtained from: * Software Update pane in System Preferences * Apple's Software Downloads web site: Mac OS X Client (updating from 10.2 - 10.2.5): http://www.info.apple.com/kbnum/n120244 The download file is named: "MacOSXUpdateCombo10.2.8.dmg" Its SHA-1 digest is: 47c4e354516d7d577c57389207e4207f2b9b2ea2 Mac OS X Client (updating from 10.2.6 - 10.2.7): http://www.info.apple.com/kbnum/n120245 The download file is named: "MacOSXUpdate10.2.8.dmg" Its SHA-1 digest is: 2fd24114274f9a1c59b2eb492301a90234215c73 Mac OS X Server (updating from 10.2 - 10.2.5): http://www.info.apple.com/kbnum/n120246 The download file is named: "MacOSXSrvrUpdCombo10.2.8.dmg" Its SHA-1 digest is: d87b3e7bd5668046f22b551ccf9bb75a4139e653 Mac OS X Server (updating from 10.2.6 - 10.2.7): http://www.info.apple.com/kbnum/n120247 The download file is named: "MacOSXServerUpdate10.2.8.dmg" Its SHA-1 digest is: 74ce19ab7488a41328bee2ba7156489f997abe7c 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 8.0.2 iQEVAwUBP29+U3eI0z6bzFr0AQJ7cQgAqJlSzUwo62mHLg1QonOHRHLOG93Q+69z 1qV563U8iMI9LxpbwFuo4YiIn1SJgf7C5fvFcONgYG1hOxXYjVAvLTbB+BBU+Ucm 2LHk5ktivzC+xnNrgDg1KUxfPgJKNngrARTvR2EiBoqSWPf8/b/nSpLmKY8al+F9 Ag+f/RDq6vi06kk0ZEJSosbMmsTeGAxm2zvclqn/a4eOrV5b0VhxjfUUXRZ5Gavw VAfYVM5K2HvAnHCaow90YpI00nrD8zygzwebWVG8j7L9diOnmrfwUYpJx+17oZsV OR0d5jRNN79H2QiGT+I+nyxOCK8AaUwPWR1IiLHlu+WDo/Z4csHlEg== =Jxha - -----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 email@example.com and we will forward your request to the appropriate person. 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 Internet Email: firstname.lastname@example.org 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 iQCVAwUBP2+ihih9+71yA2DNAQF2zgQAklSq7Xxiw43/F3ghu6Mu9slQiBz3L52W jjz3im7V/XuWZSMj+dZF63rHJOnMIgoT4FQiuKmGxu/06oA48WsZw7wY24o1Fvq8 qjH4jFenfkedqYdIIQjKgrN0O8lyef+if/TG/Nt2y0v5Z8cwLHbrM2sj8o1Zyxfh ogYmTe7QBww= =Ik5q -----END PGP SIGNATURE-----
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