Bug 457013 - pppoe: Check packet length on all receive paths [rhel-5.3]
Summary: pppoe: Check packet length on all receive paths [rhel-5.3]
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 5
Classification: Red Hat
Component: kernel
Version: 5.3
Hardware: All
OS: Linux
low
low
Target Milestone: rc
: ---
Assignee: Jiri Pirko
QA Contact: Martin Jenner
URL:
Whiteboard:
Depends On:
Blocks: 457014 457015
TreeView+ depends on / blocked
 
Reported: 2008-07-29 08:18 UTC by Eugene Teo (Security Response)
Modified: 2015-05-05 01:15 UTC (History)
7 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2009-01-20 20:24:25 UTC
Target Upstream Version:
Embargoed:

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System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2009:0225 0 normal SHIPPED_LIVE Important: Red Hat Enterprise Linux 5.3 kernel security and bug fix update 2009-01-20 16:06:24 UTC

Description Eugene Teo (Security Response) 2008-07-29 08:18:41 UTC 
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 1 Eugene Teo (Security Response) 2008-07-29 08:19:37 UTC 
Proposed upstream patch:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=392fdb0e35055b96faa9c1cd6ab537805337cdce
Comment 2 Jiri Pirko 2008-08-27 08:07:37 UTC 
patch sent: http://post-office.corp.redhat.com/archives/rhkernel-list/2008-August/msg01354.html
Comment 3 Don Zickus 2008-09-11 19:43:41 UTC 
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 20:24:25 UTC 
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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