Apple Mac OS X UFS Denial of Service Vulnerabilities - Advisories

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Apple Mac OS X UFS Denial of Service Vulnerabilities

Secunia Advisory:	SA23725
Release Date:	2007-01-12
Last Update:	2007-03-16

Critical:	Not critical
Impact:	DoS
Where:	From remote
Solution Status:	Vendor Patch

OS:	Apple Macintosh OS X


CVE reference:	CVE-2007-0299 (Secunia mirror)

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Description: LMH has reported some vulnerabilities in Apple Mac OS X, which can be exploited by malicious people to cause a DoS (Denial of Service). 1) An integer overflow error in the "byte_swap_sbin()" function in bsd/ufs/ufs/ufs_byte_order.c can be exploited to cause a kernel panic. 2) An error exists in the "ufs_dirbad()" function when handling corrupted UFS DMG images and can be exploited to cause a kernel panic. NOTE: These vulnerabilities are only remotely exploitable via the Safari web browser when the "opening safe files after downloading" option is enabled. The vulnerabilities are reported on Mac OS X 10.4.8 running on a x86 platform. Other versions may also be affected. Solution: Update to Mac OS X 10.4.9 or install Security Update 2007-003. http://docs.info.apple.com/article.html?artnum=305214 Provided and/or discovered by: LMH Changelog: 2007-01-16: Updated "Description" section. Added vulnerability #2. 2007-01-19: Added CVE reference. 2007-03-14: Updated "Solution" section. 2007-03-16: Added link to US-CERT. Original Advisory: http://projects.info-pull.com/moab/MOAB-11-01-2007.html http://projects.info-pull.com/moab/MOAB-12-01-2007.html Other References: US-CERT VU#515792: http://www.kb.cert.org/vuls/id/515792



Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise. Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.

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