Oracle Linux 4 : thunderbird (ELSA-2006-0735 / ELSA-2006-0677 / ELBA-2006-0624 / ELSA-2006-0611)

This script is Copyright (C) 2013 Tenable Network Security, Inc.


Synopsis :

The remote Oracle Linux host is missing a security update.

Description :

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

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

Mozilla Thunderbird is a standalone mail and newsgroup client.

Users of Thunderbird are advised to upgrade to this update, which
contains Thunderbird version 1.5.0.8 that corrects these issues.


From Red Hat Security Advisory 2006:0735 :

Several flaws were found in the way Thunderbird processes certain
malformed Javascript code. A malicious HTML mail message could cause
the execution of Javascript code in such a way that could cause
Thunderbird to crash or execute arbitrary code as the user running
Thunderbird. (CVE-2006-5463, CVE-2006-5747, CVE-2006-5748)

Several flaws were found in the way Thunderbird renders HTML mail
messages. A malicious HTML mail message could cause the mail client to
crash or possibly execute arbitrary code as the user running
Thunderbird. (CVE-2006-5464)

A flaw was found in the way Thunderbird verifies RSA signatures. For
RSA keys with exponent 3 it is possible for an attacker to forge a
signature that would be incorrectly verified by the NSS library.
Thunderbird as shipped trusts several root Certificate Authorities that
use exponent 3. An attacker could have created a carefully crafted SSL
certificate which would be incorrectly trusted when their site was
visited by a victim. This flaw was previously thought to be fixed in
Thunderbird 1.5.0.7, however Ulrich Kuehn discovered the fix was
incomplete (CVE-2006-5462)


From Red Hat Security Advisory 2006:0677 :

Two flaws were found in the way Thunderbird processed certain regular
expressions. A malicious HTML email could cause a crash or possibly
execute arbitrary code as the user running Thunderbird. (CVE-2006-4565,
CVE-2006-4566)

A flaw was found in the Thunderbird auto-update verification system. An
attacker who has the ability to spoof a victim's DNS could get Firefox
to download and install malicious code. In order to exploit this issue
an attacker would also need to get a victim to previously accept an
unverifiable certificate. (CVE-2006-4567)

A flaw was found in the handling of Javascript timed events. A
malicious HTML email could crash the browser or possibly execute
arbitrary code as the user running Thunderbird. (CVE-2006-4253)

Daniel Bleichenbacher recently described an implementation error in RSA
signature verification. For RSA keys with exponent 3 it is possible for
an attacker to forge a signature that which would be incorrectly
verified by the NSS library. (CVE-2006-4340)

A flaw was found in Thunderbird that triggered when a HTML message
contained a remote image pointing to a XBL script. An attacker could
have created a carefully crafted message which would execute Javascript
if certain actions were performed on the email by the recipient, even if
Javascript was disabled. (CVE-2006-4570)

A number of flaws were found in Thunderbird. A malicious HTML email
could cause a crash or possibly execute arbitrary code as the user
running Thunderbird. (CVE-2006-4571)


From Red Hat Bug Fix Advisory 2006:0624 :

A problem was found in Thunderbird where starting the application from a
graphical launcher (such as a menu item) did not work.


From Red Hat Security Advisory 2006:0611 :

The Mozilla Foundation has discontinued support for the Mozilla
Thunderbird 1.0 branch. This update deprecates the Mozilla Thunderbird
1.0 branch in Red Hat Enterprise Linux 4 in favor of the supported
Mozilla Thunderbird 1.5 branch.

This update also resolves a number of outstanding Thunderbird security
issues :

Several flaws were found in the way Thunderbird processed certain
javascript actions. A malicious mail message could execute arbitrary
javascript instructions with the permissions of 'chrome', allowing the
page to steal sensitive information or install browser malware.
(CVE-2006-2776, CVE-2006-2784, CVE-2006-2785, CVE-2006-2787,
CVE-2006-3807, CVE-2006-3809)

Several denial of service flaws were found in the way Thunderbird
processed certain mail messages. A malicious web page could crash the
browser or possibly execute arbitrary code as the user running
Thunderbird. (CVE-2006-2779, CVE-2006-2780, CVE-2006-3801,
CVE-2006-3677, CVE-2006-3113, CVE-2006-3803, CVE-2006-3805,
CVE-2006-3806, CVE-2006-3811)

Several flaws were found in the way Thunderbird processed certain
javascript actions. A malicious mail message could conduct a cross-site
scripting attack or steal sensitive information (such as cookies owned
by other domains). (CVE-2006-3802, CVE-2006-3810)

A form file upload flaw was found in the way Thunderbird handled
javascript input object mutation. A malicious mail message could upload
an arbitrary local file at form submission time without user
interaction. (CVE-2006-2782)

A denial of service flaw was found in the way Thunderbird called the
crypto.signText() javascript function. A malicious mail message could
crash the browser if the victim had a client certificate loaded.
(CVE-2006-2778)

A flaw was found in the way Thunderbird processed Proxy AutoConfig
scripts. A malicious Proxy AutoConfig server could execute arbitrary
javascript instructions with the permissions of 'chrome', allowing the
page to steal sensitive information or install client malware.
(CVE-2006-3808)

Note: Please note that JavaScript support is disabled by default in
Thunderbird. The above issues are not exploitable with JavaScript
disabled.

Two flaws were found in the way Thunderbird displayed malformed inline
vcard attachments. If a victim viewed an email message containing a
carefully crafted vcard it was possible to execute arbitrary code as the
user running Thunderbird. (CVE-2006-2781, CVE-2006-3804)

A cross site scripting flaw was found in the way Thunderbird processed
Unicode Byte-order-Mark (BOM) markers in UTF-8 mail messages. A
malicious web page could execute a script within the browser that a web
input sanitizer could miss due to a malformed 'script' tag.
(CVE-2006-2783)

Two HTTP response smuggling flaws were found in the way Thunderbird
processed certain invalid HTTP response headers. A malicious web site
could return specially crafted HTTP response headers which may bypass
HTTP proxy restrictions. (CVE-2006-2786)

A double free flaw was found in the way the nsIX509::getRawDER method
was called. If a victim visited a carefully crafted web page, it was
possible to crash Thunderbird. (CVE-2006-2788)

See also :

https://oss.oracle.com/pipermail/el-errata/2006-December/000025.html

Solution :

Update the affected thunderbird package.

Risk factor :

Critical / CVSS Base Score : 10.0
(CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C)
CVSS Temporal Score : 7.8
(CVSS2#E:POC/RL:OF/RC:C)
Public Exploit Available : true