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Linux-VServer "ccaps" Insecure Capabilities Security Issue
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Secunia Advisory:
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SA19961
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Release Date:
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2006-05-04
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Popularity:
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5,905 views
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Critical:
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Less critical
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Impact:
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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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| Software: | Linux VServer 1.x
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| CVE reference: | CVE-2006-2110
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Description:
Jan Rekorajski has reported a security issue in Linux-VServer, which can be exploited by malicious, local users to perform certain actions with escalated privileges.
The problem is caused by certain context capabilities, which are not limited to the guest-root. This allows users inside the guest to perform certain actions on usually restricted resources.
The security issue is reported for versions 0.09.10 to vs2.0-rc2.
Solution:
Apply patch (kernel 2.6.16).
http://vserver.13thfloor.at/Stuff/delta-vxcapable-fix01a.diff
Reportedly fixed in version vs2.0.2-rc18 and vs2.1.1-rc18 (kernel 2.6.16.11).
Provided and/or discovered by:
Jan Rekorajski
Original Advisory:
http://list.linux-vserver.org/archive/vserver/msg13167.html
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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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