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Xen "mov_to_rr" Security Bypass Vulnerability
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Secunia Advisory:
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SA27915
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Release Date:
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2007-12-05
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Popularity:
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3,583 views
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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 Workaround
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| Software: | Xen 3.x
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| CVE reference: | CVE-2007-6207
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Description:
A vulnerability has been reported in Xen, which can be exploited by malicious, local users to bypass certain security restrictions.
The vulnerability is caused due to Xen improperly checking RID (Region Identifier) values in calls to "mov_to_rr". This can be exploited by an attacker in a VT-i domain to read memory from another VT-i domain.
The vulnerability is reported in versions prior to 3.1.2 running on IA64 platforms.
Solution:
Fixed in Mercurial repository.
http://xenbits.xensource.com/xen-3.1-testing.hg
Provided and/or discovered by:
Reported by the vendor.
Original Advisory:
http://lists.xensource.com/archives/html/xen-ia64-devel/2007-10/msg00189.html
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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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