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FreeBSD Kernel Memory Disclosure Vulnerabilities
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Secunia Advisory:
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SA15262
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Release Date:
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2005-05-06
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Popularity:
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9,161 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
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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: | FreeBSD 4.x
FreeBSD 5.x
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Subscribe:
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Instant alerts on relevant vulnerabilities 
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| | CVE reference: | CVE-2005-1406
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Description:
Christian S.J. Peron has reported some vulnerabilities in FreeBSD, which can be exploited by malicious, local users to gain knowledge of potentially sensitive information.
The vulnerabilities are caused due to various errors in the kernel where variable-sized input is passed to applications in fixed-length buffers without zeroing the unused portion of the buffers.
Successful exploitation discloses random data in kernel memory.
Solution:
Update FreeBSD or apply patch.
Fixed versions:
2005-05-06 02:50:00 UTC (RELENG_5, 5.4-STABLE)
2005-05-06 02:51:10 UTC (RELENG_5_4, 5.4-RELEASE)
2005-05-06 02:50:35 UTC (RELENG_5_3, 5.3-RELEASE-p13)
2005-05-06 02:48:46 UTC (RELENG_4, 4.11-STABLE)
2005-05-06 02:49:35 UTC (RELENG_4_11, 4.11-RELEASE-p7)
2005-05-06 02:49:08 UTC (RELENG_4_10, 4.10-RELEASE-p12)
Patch for FreeBSD 4.x:
ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/patches/SA-05:08/kmem4.patch
ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/patches/SA-05:08/kmem4.patch.asc
Patch for FreeBSD 5.x:
ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/patches/SA-05:08/kmem5.patch
ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/patches/SA-05:08/kmem5.patch.asc
Provided and/or discovered by:
Christian S.J. Peron
Original Advisory:
ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-05:08.kmem.asc
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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.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
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10th Oct, 2008
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