Bug 457013 - pppoe: Check packet length on all receive paths [rhel-5.3]
pppoe: Check packet length on all receive paths [rhel-5.3]
Status: CLOSED ERRATA
Product: Red Hat Enterprise Linux 5
Classification: Red Hat
Component: kernel (Show other bugs)
5.3
All Linux
low Severity low
: rc
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Assigned To: Jiri Pirko
Martin Jenner
:
Depends On:
Blocks: 457014 457015
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Reported: 2008-07-29 04:18 EDT by Eugene Teo (Security Response)
Modified: 2015-05-04 21:15 EDT (History)
7 users (show)

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Doc Type: Bug Fix
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Last Closed: 2009-01-20 15:24:25 EST
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RHEL 7.3 requirements from Atomic Host:
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Description Eugene Teo (Security Response) 2008-07-29 04:18:41 EDT
Description of problem:
The length field in the PPPOE header wasn't checked completely. It lacks of a
lower-bound check. Also, call skb_copy_datagram_iovec instead of memcpy_toiovec
so that paged packets (rare for PPPOE) are handled properly.
Comment 3 Don Zickus 2008-09-11 15:43:41 EDT
in kernel-2.6.18-111.el5
You can download this test kernel from http://people.redhat.com/dzickus/el5
Comment 7 errata-xmlrpc 2009-01-20 15:24:25 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 therefore 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-2009-0225.html

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