Apple Mac OS X UFS ffs_mountfs() Integer Overflow - Advisories

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Apple Mac OS X UFS ffs_mountfs() Integer Overflow

Secunia Advisory:	SA23703
Release Date:	2007-01-11
Last Update:	2007-03-14

Critical:	Highly critical
Impact:	DoS System access
Where:	From remote
Solution Status:	Vendor Patch

OS:	Apple Macintosh OS X


CVE reference:	CVE-2007-0229 (Secunia mirror)

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Description: LMH has reported a vulnerability in Mac OS X, which can potentially be exploited by malicious people to compromise a user's system. The vulnerability is caused due to an integer overflow error in the "ffs_mountfs()" function when handling UFS filesystem disc images. This can be exploited to cause a heap-based buffer overflow via a specially crafted UFS DMG image. Successful exploitation may allow the execution of arbitrary code. NOTE: This is only remotely exploitable via the Safari web browser when the "opening safe files after downloading" option is enabled. The vulnerability is reported in an updated Mac OS X 10.4.8. 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: 2007-01-17: Added link to US-CERT. 2007-01-17: Added CVE reference. 2007-03-14: Updated "Solution" section. Original Advisory: http://projects.info-pull.com/moab/MOAB-10-01-2007.html Other References: US-CERT VU#552136: http://www.kb.cert.org/vuls/id/552136



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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