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Linux Kernel Multiple Vulnerabilities
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Secunia Advisory:
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SA23073
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Release Date:
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2006-11-30
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Last Update:
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2008-10-03
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Popularity:
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9,154 views
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Critical:
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Less critical
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Impact:
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Exposure of sensitive information
Privilege escalation
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Where:
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Local system
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Solution Status:
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Vendor Patch
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| OS: | Linux Kernel 2.6.x
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Subscribe:
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| CVE reference: | CVE-2006-5751
CVE-2008-2729
CVE-2008-3833
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Description:
Some vulnerabilities have been reported in the Linux Kernel, which can be exploited by malicious, local users to disclose potentially sensitive information or to potentially gain escalated privileges.
1) An integer overflow error exists within the "get_fdb_entries()" function in net/bridge/br_ioctl.c. This can be exploited to cause a buffer overflow via specially crafted ioctl() requests.
Successful exploitation may allow the execution of arbitrary code with escalated privileges.
2) An error while copying memory from userspace on AMD64 platforms can be exploited to disclose potentially sensitive information.
3) An error in the "generic_file_splice_write()" function can be exploited to potentially gain escalated user or group privileges.
Solution:
Update to version 2.6.19. Vulnerability #1 is also fixed in version 2.6.18.4.
Provided and/or discovered by:
1) Reported by Eugene Teo, further research by a1rsupp1y.
2) Reported by Andi Kleen. Disclosed as a vulnerability via a Red Hat bug report.
3) Originally reported as a kernel bug by Mark Fasheh. Reported as a security issue by Eugene Teo.
Changelog:
2008-06-26: Added vulnerability #2 to the advisory. Updated credits and the "Original Advisory" section. Added CVE reference.
2008-10-03: Added vulnerability #3 to the advisory. Updated credits and the "Original Advisory" section. Added CVE reference.
Original Advisory:
1) http://projects.info-pull.com/mokb/MOKB-29-11-2006.html
http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.18.4
2) https://bugzilla.redhat.com/show_bug.cgi?id=451271
http://git.kernel.org/?p=linux/kernel...2d734a54cbd2b65eea9a024564821101b4a9a
3) https://bugzilla.redhat.com/show_bug.cgi?id=464450
http://git.kernel.org/?p=linux/kernel...4e2d63231d4bf4852bac8521883944d770fe3
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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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