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high7.2Public exploit code

CVE-2009-1238

Race condition in the HFS vfs sysctl interface in XNU 1228.8.20 and earlier on Apple Mac OS X 10.5.6 and earlier allows local users to cause a denial of servic…

Public exploit code

Working exploit or proof of concept code has been published for this vulnerability. Treat unpatched systems as at risk.

Impact

Race condition in the HFS vfs sysctl interface in XNU 1228.8.20 and earlier on Apple Mac OS X 10.5.6 and earlier allows local users to cause a denial of service (kernel memory corruption) by simultaneously executing the same HFS_SET_PKG_EXTENSIONS code path in multiple threads, which is problematic because of lack of mutex locking for an unspecified global variable.

Affected products

VendorProductAffected versions
AppleMac Os X
through 10.5.6
Versions 10.0, 10.0.0, 10.0.1, 10.0.2, 10.0.3
AppleMac Os X Server
through 10.5.6
Versions 10.0, 10.0.0, 10.0.1, 10.0.2, 10.0.3

Weakness classification

References