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Mac OS X Security Update Fixes Multiple Vulnerabilities
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Secunia Advisory:
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SA16920
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Release Date:
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2005-09-23
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Last Update:
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2005-09-28
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Popularity:
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14,899 views
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Critical:
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Highly critical
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Impact:
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Security Bypass
Cross Site Scripting
Exposure of sensitive information
Privilege escalation
System access
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| OS: | Apple Macintosh OS X
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Subscribe:
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Instant alerts on relevant vulnerabilities 
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| | CVE reference: | CVE-2005-1992
CVE-2005-2524
CVE-2005-2741
CVE-2005-2742
CVE-2005-2743
CVE-2005-2744
CVE-2005-2745
CVE-2005-2746
CVE-2005-2747
CVE-2005-2748
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Description:
Apple has issued a security update for Mac OS X, which fixes 10 vulnerabilities.
1) A boundary error in ImageIO can be exploited to cause a buffer overflow and may allow execution of arbitrary code on a user's system when a specially crafted GIF file is opened e.g. in WebCore or Safari.
2) An error in Mail.app when processing auto-reply rules can cause an automatically generated response message to include a plain-text copy of the encrypted message. This may disclose certain sensitive information.
3) An error in Mail.app when using Kerberos 5 for SMTP authentication can cause un-initialized memory to be appended to a message. This may disclose certain sensitive information. For Mac OS X v10.4.2, the vulnerability was fixed in Security Update 2005-007.
For more information:
SA16449
4) "malloc" creates diagnostic files insecurely when the "MallocLogFile" environment variable is set to enable logging when debugging application memory allocation. This can be exploited by malicious, local users to create or overwrite arbitrary files when running suid root applications.
5) A boundary error in QuickDraw Manager can be exploited to cause a buffer overflow and may allow arbitrary code execution on a user's system when a specially crafted PICT file is viewed e.g. from Safari, Mail, or Finder.
6) A validation error in the Java extensions bundled with QuickTime 6.52 and earlier can be exploited by untrusted applets to call arbitrary functions from system libraries. Systems with QuickTime 7 or later, or Mac OS X v10.4 or later, are not affected.
7) A vulnerability in Ruby can be exploited by malicious people to bypass certain security restrictions. Systems prior to Mac OS X v10.4 are not affected.
For more information:
SA15767
8) A validation error in Safari when rendering web archives from a malicious site can be exploited to execute arbitrary HTML and script code in a user's browser session in the context of another site. For Mac OS X v10.4.2, the vulnerability was fixed in Security Update 2005-007.
For more information:
SA16449
9) An error in the SecurityAgent may cause the "Switch User..." button to be displayed even when the "Enable fast user switching" setting has been disabled. This may allow malicious, local users to access the current user's desktop without authentication even when the "Require password to wake this computer from sleep or screen saver" setting is enabled.
10) A validation error in the Authorization Services "securityd" allows unprivileged users to gain certain privileges that should be restricted to administrative users. This can be exploited by malicious, local users to gain escalated privileges.
Solution:
Apply Security Update 2005-008.
Mac OS X 10.3.9:
http://www.apple.com/support/downloads/securityupdate2005008macosx1039.html
Mac OS X 10.4.2:
http://www.apple.com/support/downloads/securityupdate2005008macosx1042.html
Provided and/or discovered by:
2) Norbert Rittel, Rittel Consulting
3) MIT Kerberos Team
4) Ilja van Sprundel, Suresec LTD
5) Henrik Dalgaard, Echo One
6) Dino Dai Zovi
9) Luke Fowler, Indiana University Global Research Network Operations Center
Changelog:
2005-09-26: Updated description for vulnerability #4. Added link to original advisory.
2005-09-28: Added links to US-CERT vulnerability note.
Original Advisory:
Apple:
http://docs.info.apple.com/article.html?artnum=302413
Suresec:
http://www.suresec.org/advisories/adv7.pdf
Other References:
SA15767:
http://secunia.com/advisories/15767/
SA16449:
http://secunia.com/advisories/16449/
US-CERT VU#529945
http://www.kb.cert.org/vuls/id/529945
US-CERT VU#650681
http://www.kb.cert.org/vuls/id/650681
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About this Secunia Advisory
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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