Mac OS X Update Fixes Multiple Vulnerabilities
SECUNIA ADVISORY ID:
Security Bypass, Exposure of system information, Exposure of
Apple Macintosh OS X
Apple has issued an update for Mac OS X. This fixes some
vulnerabilities and a security issue, which can be exploited by
malicious, local users to bypass certain security restrictions or to
gain knowledge of potentially sensitive information.
1) An error in "memberd" when handling changes to group memberships
may be exploited by malicious users to access files or other
resources even after they have been removed from a group. This is
caused due to group membership changes not being enforced immediately
in access control checks.
The vulnerability has been reported in Mac OS X Server v10.4.2.
2) An error in the Keychain access utility in handling automatic
password display timeouts may be exploited to disclose the password
that is currently being viewed. This is caused due to the password
display not being hidden after timeout.
The security issue has been reported in Mac OS X v10.4.2 and Mac OS X
3) Some errors in certain kernel interfaces may be exploited to
return data that includes sensitive information in uninitialized
For more information:
The vulnerabilities have been reported in Mac OS X v10.4.2 and Mac OS
X Server v10.4.2.
An issue in the Software Update and another in the displaying of file
and group permissions in the Finder Get Info Window have also been
Apply Mac OS X 10.4.3 update.
Mac OS X 10.4.2 Client:
Mac OS X 10.4, 10.4.1, 10.4.2 Client:
Mac OS X 10.4.2 Server:
Mac OS X 10.4 - 10.4.2 Server:
PROVIDED AND/OR DISCOVERED BY:
2) Eric Hall, DarkArt Consulting Services.
3) Ilja van Sprundel and Neil Archibald of Suresec LTD, and Colin
Pervical of FreeBSD.
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