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FreeBSD amd64 Direct Hardware Access Security Issue
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Secunia Advisory:
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SA14827
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Release Date:
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2005-04-06
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Last Update:
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2005-04-14
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Critical:
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Less critical
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Impact:
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Security Bypass
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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 5.x
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| | CVE reference: | CVE-2005-1036 (Secunia mirror)
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Description: Jari Kirma has reported a security issue in FreeBSD, which can be exploited by malicious, local users to bypass certain security restrictions.
The problem is caused due to incorrect initialization of the bitmap used for determining, which hardware can be accessed by unprivileged
processes.
Successful exploitation allows direct access to some hardware on amd64 systems and can potentially be exploited to cause a DoS (Denial of Service), disclose sensitive information, or gain escalated privileges.
Solution: Update FreeBSD or apply patch.
Updated versions:
2005-04-06 01:05:51 UTC (RELENG_5, 5.4-STABLE)
2005-04-06 01:06:15 UTC (RELENG_5_4, 5.4-RELEASE)
2005-04-06 01:06:44 UTC (RELENG_5_3, 5.3-RELEASE-p8)
Patch:
ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/patches/SA-05:03/amd64.patch
ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/patches/SA-05:03/amd64.patch.asc
Provided and/or discovered by: Jari Kirma
Changelog: 2005-04-14: Added CVE reference.
Original Advisory: ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-05:03.amd64.asc
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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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