Bug 165560 - CAN-2005-2456 IPSEC overflow
CAN-2005-2456 IPSEC overflow
Status: CLOSED ERRATA
Product: Red Hat Enterprise Linux 4
Classification: Red Hat
Component: kernel (Show other bugs)
4.0
All Linux
medium Severity high
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Assigned To: David Miller
Brian Brock
impact=important,public=20050725,sour...
: Security
: 165138 (view as bug list)
Depends On:
Blocks: 156322
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Reported: 2005-08-10 10:23 EDT by Mark J. Cox (Product Security)
Modified: 2007-11-30 17:07 EST (History)
1 user (show)

See Also:
Fixed In Version: RHSA-2005-514
Doc Type: Bug Fix
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Last Closed: 2005-10-05 09:50:11 EDT
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Description Mark J. Cox (Product Security) 2005-08-10 10:23:14 EDT
When a user specified IPSEC rule to compile is given, we don't check
the bounds of the direction, leading to overflows of the in-socket
IPSEC rule array.  This could allow a local unprivileged user to cause memory
corruption.

Fixed upstream here on 20050726
http://linux.bkbits.net:8080/linux-2.6/cset@42e6bc85npULs5heBLcOs_2M2zCpQ

See the following threads for a test program and more desciprtion

http://www.mail-archive.com/netdev@vger.kernel.org/msg00520.html
http://www.mail-archive.com/netdev@vger.kernel.org/msg00523.html

Note that a fix for this is already committed for U2 in linux-2.6.12-network.patch
Comment 4 Mark J. Cox (Product Security) 2005-08-30 04:31:42 EDT
*** Bug 165138 has been marked as a duplicate of this bug. ***
Comment 6 Red Hat Bugzilla 2005-10-05 09:50:11 EDT
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHSA-2005-514.html

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