Vulnerability Description
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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Apple | Mac Os X | <= 10.5.6 |
| Apple | Mac Os X Server | <= 10.5.6 |
Related Weaknesses (CWE)
References
- http://secunia.com/advisories/34424
- http://www.digit-labs.org/files/exploits/xnu-vfssysctl-dos.cExploit
- http://www.informationweek.com/news/hardware/mac/showArticle.jhtml?articleID=216
- http://www.securityfocus.com/bid/34202Exploit
- https://www.exploit-db.com/exploits/8265
- http://secunia.com/advisories/34424
- http://www.digit-labs.org/files/exploits/xnu-vfssysctl-dos.cExploit
- http://www.informationweek.com/news/hardware/mac/showArticle.jhtml?articleID=216
- http://www.securityfocus.com/bid/34202Exploit
- https://www.exploit-db.com/exploits/8265
FAQ
What is CVE-2009-1238?
CVE-2009-1238 is a vulnerability with a CVSS score of 7.2 (HIGH). 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 simultane...
How severe is CVE-2009-1238?
CVE-2009-1238 has been rated HIGH with a CVSS base score of 7.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2009-1238?
Check the references section above for vendor advisories and patch information. Affected products include: Apple Mac Os X, Apple Mac Os X Server.