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Category:   Application (E-mail Client)  >   Mozilla Thunderbird Vendors:   Mozilla.org
(Red Hat Issues Fix for Mozilla Thunderbird) Fetchmail APOP Authentication Weakness May Let Remote Users Determine the APOP Secret
SecurityTracker Alert ID:  1018169
SecurityTracker URL:  http://securitytracker.com/id/1018169
CVE Reference:   CVE-2007-1558   (Links to External Site)
Date:  May 31 2007
Impact:   Disclosure of authentication information
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in Fetchmail. A remote user may be able to determine the APOP secret. Mozilla Thunderbird is affected.

A remote server can send arbitrary text as an APOP challenge in response to a fetchmail POP3 client request. As a result, this may facilitate a man-in-the-middle attack to determine the APOP secret.

The vendor credits Gatan Leurent with reporting this vulnerability.

Impact:   A remote user may be able to conduct a man-in-the-middle attack to determine the APOP secret.
Solution:   Red Hat has released a fix for Mozilla Thunderbird, which is affected by this APOP vulnerability.

The Red Hat advisory is available at:

https://rhn.redhat.com/errata/RHSA-2007-0401.html

Vendor URL:  fetchmail.berlios.de/fetchmail-SA-2007-01.txt (Links to External Site)
Cause:   Authentication error
Underlying OS:  Linux (Red Hat Enterprise)
Underlying OS Comments:  4, 5

Message History:   This archive entry is a follow-up to the message listed below.
May 7 2007 Fetchmail APOP Authentication Weakness May Let Remote Users Determine the APOP Secret



 Source Message Contents

Subject:  [RHSA-2007:0401-01] Critical: thunderbird security update


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

- ---------------------------------------------------------------------
                   Red Hat Security Advisory

Synopsis:          Critical: thunderbird security update
Advisory ID:       RHSA-2007:0401-01
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2007-0401.html
Issue date:        2007-05-30
Updated on:        2007-05-30
Product:           Red Hat Enterprise Linux
CVE Names:         CVE-2007-1362 CVE-2007-1558 CVE-2007-2867 
                   CVE-2007-2868 CVE-2007-2869 CVE-2007-2871 
- ---------------------------------------------------------------------

1. Summary:

Updated thunderbird packages that fix several security bugs are now
available for Red Hat Enterprise Linux 4 and 5.

This update has been rated as having critical security impact by the Red
Hat Security Response Team.

2. Relevant releases/architectures:

Red Hat Enterprise Linux AS version 4 - i386, ia64, ppc, s390, s390x, x86_64
Red Hat Enterprise Linux Desktop version 4 - i386, x86_64
Red Hat Enterprise Linux ES version 4 - i386, ia64, x86_64
Red Hat Enterprise Linux WS version 4 - i386, ia64, x86_64
Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64
RHEL Optional Productivity Applications (v. 5 server) - i386, x86_64

3. Problem description:

Mozilla Thunderbird is a standalone mail and newsgroup client.

Several flaws were found in the way Thunderbird processed certain malformed
JavaScript code. A web page containing malicious JavaScript code could
cause Thunderbird to crash or potentially execute arbitrary code
as the user running Thunderbird. (CVE-2007-2867, CVE-2007-2868)

Several denial of service flaws were found in the way Thunderbird handled
certain form and cookie data. A malicious web site that is able to set
arbitrary form and cookie data could prevent Thunderbird from
functioning properly. (CVE-2007-1362, CVE-2007-2869)

A flaw was found in the way Thunderbird processed certain APOP
authentication requests. By sending certain responses when Thunderbird
attempted to authenticate against an APOP server, a remote attacker could
potentially acquire certain portions of a user's authentication
credentials. (CVE-2007-1558)

A flaw was found in the way Thunderbird displayed certain web content. A
malicious web page could generate content which could overlay user
interface elements such as the hostname and security indicators, tricking 
users into thinking they are visiting a different site. (CVE-2007-2871)

Users of Thunderbird are advised to apply this update, which contains
Thunderbird version 1.5.0.12 that corrects these issues.

4. Solution:

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

This update is available via Red Hat Network.  Details on how to use 
the Red Hat Network to apply this update are available at
http://kbase.redhat.com/faq/FAQ_58_10188

5. Bug IDs fixed (http://bugzilla.redhat.com/):

241671 - CVE-2007-1362 Miltiple Thunderbird flaws (CVE-2007-1558, CVE-2007-2867, CVE-2007-2868, CVE-2007-2869, CVE-2007-2871)

6. RPMs required:

Red Hat Enterprise Linux AS version 4:

SRPMS:
ftp://updates.redhat.com/enterprise/4AS/en/os/SRPMS/thunderbird-1.5.0.12-0.1.el4.src.rpm
134123edab40c49aa447d0a69aeff277  thunderbird-1.5.0.12-0.1.el4.src.rpm

i386:
5beac02b962dc89ca44e7aff900ec954  thunderbird-1.5.0.12-0.1.el4.i386.rpm
48f2f9f6890b2f89d47d833158ef89ae  thunderbird-debuginfo-1.5.0.12-0.1.el4.i386.rpm

ia64:
7626ddc15d91b51ba6af1416e462fc4b  thunderbird-1.5.0.12-0.1.el4.ia64.rpm
72506c1633556600e3be88f88df702f0  thunderbird-debuginfo-1.5.0.12-0.1.el4.ia64.rpm

ppc:
187a99e50a36d685db0670a28c7483c2  thunderbird-1.5.0.12-0.1.el4.ppc.rpm
f556266cc48724f8cc22789b72002130  thunderbird-debuginfo-1.5.0.12-0.1.el4.ppc.rpm

s390:
208159e6c7493e8717ba3b164f0cc8da  thunderbird-1.5.0.12-0.1.el4.s390.rpm
2e357cd7ed0537a3289659fa6276541c  thunderbird-debuginfo-1.5.0.12-0.1.el4.s390.rpm

s390x:
b32a87963308301ed9c2b79e0f4072bb  thunderbird-1.5.0.12-0.1.el4.s390x.rpm
307349d6ff303c515720af0d1ec3b5d1  thunderbird-debuginfo-1.5.0.12-0.1.el4.s390x.rpm

x86_64:
d8cef7bf47874f6c1f0ca35919d8b382  thunderbird-1.5.0.12-0.1.el4.x86_64.rpm
79f3c413f5fff681383e72a93aa331c7  thunderbird-debuginfo-1.5.0.12-0.1.el4.x86_64.rpm

Red Hat Enterprise Linux Desktop version 4:

SRPMS:
ftp://updates.redhat.com/enterprise/4Desktop/en/os/SRPMS/thunderbird-1.5.0.12-0.1.el4.src.rpm
134123edab40c49aa447d0a69aeff277  thunderbird-1.5.0.12-0.1.el4.src.rpm

i386:
5beac02b962dc89ca44e7aff900ec954  thunderbird-1.5.0.12-0.1.el4.i386.rpm
48f2f9f6890b2f89d47d833158ef89ae  thunderbird-debuginfo-1.5.0.12-0.1.el4.i386.rpm

x86_64:
d8cef7bf47874f6c1f0ca35919d8b382  thunderbird-1.5.0.12-0.1.el4.x86_64.rpm
79f3c413f5fff681383e72a93aa331c7  thunderbird-debuginfo-1.5.0.12-0.1.el4.x86_64.rpm

Red Hat Enterprise Linux ES version 4:

SRPMS:
ftp://updates.redhat.com/enterprise/4ES/en/os/SRPMS/thunderbird-1.5.0.12-0.1.el4.src.rpm
134123edab40c49aa447d0a69aeff277  thunderbird-1.5.0.12-0.1.el4.src.rpm

i386:
5beac02b962dc89ca44e7aff900ec954  thunderbird-1.5.0.12-0.1.el4.i386.rpm
48f2f9f6890b2f89d47d833158ef89ae  thunderbird-debuginfo-1.5.0.12-0.1.el4.i386.rpm

ia64:
7626ddc15d91b51ba6af1416e462fc4b  thunderbird-1.5.0.12-0.1.el4.ia64.rpm
72506c1633556600e3be88f88df702f0  thunderbird-debuginfo-1.5.0.12-0.1.el4.ia64.rpm

x86_64:
d8cef7bf47874f6c1f0ca35919d8b382  thunderbird-1.5.0.12-0.1.el4.x86_64.rpm
79f3c413f5fff681383e72a93aa331c7  thunderbird-debuginfo-1.5.0.12-0.1.el4.x86_64.rpm

Red Hat Enterprise Linux WS version 4:

SRPMS:
ftp://updates.redhat.com/enterprise/4WS/en/os/SRPMS/thunderbird-1.5.0.12-0.1.el4.src.rpm
134123edab40c49aa447d0a69aeff277  thunderbird-1.5.0.12-0.1.el4.src.rpm

i386:
5beac02b962dc89ca44e7aff900ec954  thunderbird-1.5.0.12-0.1.el4.i386.rpm
48f2f9f6890b2f89d47d833158ef89ae  thunderbird-debuginfo-1.5.0.12-0.1.el4.i386.rpm

ia64:
7626ddc15d91b51ba6af1416e462fc4b  thunderbird-1.5.0.12-0.1.el4.ia64.rpm
72506c1633556600e3be88f88df702f0  thunderbird-debuginfo-1.5.0.12-0.1.el4.ia64.rpm

x86_64:
d8cef7bf47874f6c1f0ca35919d8b382  thunderbird-1.5.0.12-0.1.el4.x86_64.rpm
79f3c413f5fff681383e72a93aa331c7  thunderbird-debuginfo-1.5.0.12-0.1.el4.x86_64.rpm

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

SRPMS:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/thunderbird-1.5.0.12-1.el5.src.rpm
f7fe1c1c79c97702a10362a5102de401  thunderbird-1.5.0.12-1.el5.src.rpm

i386:
4e5f17214f1d336e1a282fb5f82b793c  thunderbird-1.5.0.12-1.el5.i386.rpm
ec6c018ec12c4a84a8d945a76893078b  thunderbird-debuginfo-1.5.0.12-1.el5.i386.rpm

x86_64:
7238bcac06fa2fd194358000c453effe  thunderbird-1.5.0.12-1.el5.x86_64.rpm
58cab0141318f066a35dd119cd595bf9  thunderbird-debuginfo-1.5.0.12-1.el5.x86_64.rpm

RHEL Optional Productivity Applications (v. 5 server):

SRPMS:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/thunderbird-1.5.0.12-1.el5.src.rpm
f7fe1c1c79c97702a10362a5102de401  thunderbird-1.5.0.12-1.el5.src.rpm

i386:
4e5f17214f1d336e1a282fb5f82b793c  thunderbird-1.5.0.12-1.el5.i386.rpm
ec6c018ec12c4a84a8d945a76893078b  thunderbird-debuginfo-1.5.0.12-1.el5.i386.rpm

x86_64:
7238bcac06fa2fd194358000c453effe  thunderbird-1.5.0.12-1.el5.x86_64.rpm
58cab0141318f066a35dd119cd595bf9  thunderbird-debuginfo-1.5.0.12-1.el5.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://www.redhat.com/security/team/key/#package

7. References:

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-1362
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-1558
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-2867
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-2868
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-2869
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-2871
http://www.redhat.com/security/updates/classification/#critical

8. Contact:

The Red Hat security contact is <secalert@redhat.com>.  More contact
details at https://www.redhat.com/security/team/contact/

Copyright 2007 Red Hat, Inc.
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