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]
Alias: None
Product: Red Hat Enterprise Linux 5
Classification: Red Hat
Component: kernel
Version: 5.3
Hardware: All
OS: Linux
Target Milestone: rc
: ---
Assignee: Jiri Pirko
QA Contact: Martin Jenner
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:
Last Closed: 2009-01-20 20:24:25 UTC
Target Upstream Version:

Attachments (Terms of Use)

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 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.


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