Updated w3m packages that fix one security issue are now available for Red Hat Enterprise Linux 5. The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score,

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====================================================================                   Red Hat Security Advisory

Synopsis:          Moderate: w3m security update
Advisory ID:       RHSA-2010:0565-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2010:0565.html
Issue date:        2010-07-27
CVE Names:         CVE-2010-2074 
====================================================================
1. Summary:

Updated w3m packages that fix one security issue are now available for Red
Hat Enterprise Linux 5.

The Red Hat Security Response Team has rated this update as having moderate
security impact. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available from the CVE link in
the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64
Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64

3. Description:

The w3m program is a pager (or text file viewer) that can also be used as a
text mode web browser.

It was discovered that w3m is affected by the previously published "null
prefix attack", caused by incorrect handling of NULL characters in X.509
certificates. If an attacker is able to get a carefully-crafted certificate
signed by a trusted Certificate Authority, the attacker could use the
certificate during a man-in-the-middle attack and potentially confuse w3m
into accepting it by mistake. (CVE-2010-2074)

All w3m users should upgrade to these updated packages, which contain a
backported patch to correct this issue.

4. Solution:

Before applying this update, make sure all previously-released errata
relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at

5. Bugs fixed (http://bugzilla.redhat.com/):

604855 - CVE-2010-2074 w3m: doesn't handle NULL in Common Name properly

6. Package List:

Red Hat Enterprise Linux Desktop (v. 5 client):

Source:

i386:
w3m-0.5.1-17.el5_5.i386.rpm
w3m-debuginfo-0.5.1-17.el5_5.i386.rpm
w3m-img-0.5.1-17.el5_5.i386.rpm

x86_64:
w3m-0.5.1-17.el5_5.x86_64.rpm
w3m-debuginfo-0.5.1-17.el5_5.x86_64.rpm
w3m-img-0.5.1-17.el5_5.x86_64.rpm

Red Hat Enterprise Linux (v. 5 server):

Source:

i386:
w3m-0.5.1-17.el5_5.i386.rpm
w3m-debuginfo-0.5.1-17.el5_5.i386.rpm
w3m-img-0.5.1-17.el5_5.i386.rpm

ia64:
w3m-0.5.1-17.el5_5.ia64.rpm
w3m-debuginfo-0.5.1-17.el5_5.ia64.rpm
w3m-img-0.5.1-17.el5_5.ia64.rpm

ppc:
w3m-0.5.1-17.el5_5.ppc.rpm
w3m-debuginfo-0.5.1-17.el5_5.ppc.rpm
w3m-img-0.5.1-17.el5_5.ppc.rpm

s390x:
w3m-0.5.1-17.el5_5.s390x.rpm
w3m-debuginfo-0.5.1-17.el5_5.s390x.rpm
w3m-img-0.5.1-17.el5_5.s390x.rpm

x86_64:
w3m-0.5.1-17.el5_5.x86_64.rpm
w3m-debuginfo-0.5.1-17.el5_5.x86_64.rpm
w3m-img-0.5.1-17.el5_5.x86_64.rpm

These packages are GPG signed by Red Hat for security.  Our key and 
details on how to verify the signature are available from
https://access.redhat.com/security/team/key#package

7. References:

https://access.redhat.com/security/cve/CVE-2010-2074
https://access.redhat.com/security/updates/classification#moderate

8. Contact:

The Red Hat security contact is .  More contact
details at https://access.redhat.com/security/team/contact

Copyright 2010 Red Hat, Inc.
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