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Sun Solaris Kernel Covert Channel Security Bypass
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Secunia Advisory:
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SA31667
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Release Date:
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2008-08-29
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Last Update:
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2008-09-04
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Popularity:
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3,194 views
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Critical:
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Not 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: | Sun Solaris 10
Sun Solaris 8
Sun Solaris 9
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Subscribe:
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| CVE reference: | CVE-2008-3875
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Description:
A vulnerability has been reported in Sun Solaris, which can be exploited by malicious, local users to bypass certain security restrictions.
The vulnerability is caused due to an error within the Solaris kernel related to system calls. This can be exploited to establish a covert communication channel between two unprivileged processes, thus bypassing e.g. the multi-level security policy in Solaris Trusted Extensions or the isolation policy of zones(5) or chroot(2).
The vulnerability is reported in Solaris 8, 9, 10 for both the SPARC and x86 platforms.
Solution:
Apply patches.
-- SPARC Platform --
Solaris 8:
Apply patch 117350-56 or later.
Solaris 9:
Apply patch 122300-30 or later.
Solaris 10:
Apply patch 137111-05 or later.
OpenSolaris:
Fixed in build snv_90 or later.
-- x86 Platform --
Solaris 8:
Apply patch 117351-56 or later.
Solaris 9:
Apply patch 122301-30 or later.
Solaris 10:
Apply patch 137112-05 or later.
OpenSolaris:
Fixed in build snv_90 or later.
Provided and/or discovered by:
Reported by the vendor.
Changelog:
2008-09-04: Added CVE reference.
Original Advisory:
http://sunsolve.sun.com/search/document.do?assetkey=1-66-240706-1
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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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