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Apple Mac OS X UFS ffs_mountfs() Integer Overflow
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Secunia Advisory:
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SA23703
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Release Date:
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2007-01-11
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Last Update:
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2007-03-14
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Popularity:
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18,059 views
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Critical:
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Highly critical
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Impact:
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DoS
System access
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| OS: | Apple Macintosh OS X
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| CVE reference: | CVE-2007-0229
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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
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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