Bug 213214 - CVE-2006-5619 Lockup via /proc/net/ip6_flowlabel
CVE-2006-5619 Lockup via /proc/net/ip6_flowlabel
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: Thomas Graf
Brian Brock
impact=important,source=vendorsec,rep...
: Security
Depends On:
Blocks:
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Reported: 2006-10-31 05:07 EST by Marcel Holtmann
Modified: 2014-06-18 04:29 EDT (History)
4 users (show)

See Also:
Fixed In Version: RHSA-2007-0014
Doc Type: Bug Fix
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Last Closed: 2007-01-30 09:36:18 EST
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Description Marcel Holtmann 2006-10-31 05:07:11 EST
From James Morris:

There's a bug in the seqfile handling for /proc/net/ip6_flowlabel, where, after
finding a flowlabel, the code will loop forever not finding any further
flowlabels, first traversing the rest of the hash bucket then just looping. This
bug can cause lockups and oopses, and is trivially invoked by an unpriveleged user.
Comment 3 Jason Baron 2006-12-11 17:14:45 EST
committed in stream U5 build 42.30. A test kernel with this patch is available
from http://people.redhat.com/~jbaron/rhel4/
Comment 5 Jason Baron 2006-12-18 16:51:17 EST
committed in stream E5 build 42.0.4
Comment 7 Mike Gahagan 2007-01-17 16:04:57 EST
verified using the attached test case.
Comment 9 Red Hat Bugzilla 2007-01-30 09:36:21 EST
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-2007-0014.html

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