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Apple Mac OS X UFS Denial of Service Vulnerabilities
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Secunia Advisory:
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SA23725
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Release Date:
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2007-01-12
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Last Update:
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2007-03-16
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Popularity:
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9,142 views
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Critical:
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Not critical
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Impact:
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DoS
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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-2007-0299
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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
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About this Secunia Advisory
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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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