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Category:   Application (E-mail Client)  >   Mozilla Thunderbird Vendors:   Mozilla.org
Mozilla Thunderbird Multiple Flaws Let Remote Users Execute Arbitrary Code, Obtain Potentially Sensitive Information, and Bypass Security Restrictions
SecurityTracker Alert ID:  1032784
SecurityTracker URL:  http://securitytracker.com/id/1032784
CVE Reference:   CVE-2015-2721, CVE-2015-2722, CVE-2015-2724, CVE-2015-2725, CVE-2015-2726, CVE-2015-2731, CVE-2015-2733, CVE-2015-2734, CVE-2015-2735, CVE-2015-2736, CVE-2015-2737, CVE-2015-2738, CVE-2015-2739, CVE-2015-2740, CVE-2015-2741, CVE-2015-4000   (Links to External Site)
Date:  Jul 3 2015
Impact:   Disclosure of authentication information, Disclosure of system information, Disclosure of user information, Execution of arbitrary code via network, Modification of authentication information, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 38.0 and prior
Description:   Multiple vulnerabilities were reported in Mozilla Thunderbird. A remote user can execute arbitrary code on the target system. A remote user can bypass security controls on the target system. A remote user can obtain potentially sensitive information.

A remote user can create specially crafted HTML that, when loaded by the target user, will trigger a memory corruption error and execute arbitrary code on the target system [CVE-2015-2724, CVE-2015-2725, CVE-2015-2726, CVE-2015-2734, CVE-2015-2735, CVE-2015-2736, CVE-2015-2737, CVE-2015-2738, CVE-2015-2739, CVE-2015-2740]. The code will run with the privileges of the target user.

A remote user can trigger a use-after-free memory error in CSPService::ShouldLoad() when a Content Policy modifies the Document Object Model (DOM) to remove a DOM object [CVE-2015-2731].

A remote user can trigger a use-after-free memory error when using XMLHttpRequest in conjunction with shared or dedicated workers [CVE-2015-2722, CVE-2015-2733].

When an error that may be overridden occurs, key pinning checks may be missed [CVE-2015-2741].

A remote user that can conduct a man-in-the-middle attack can cause the target system to downgrade the Diffie-Hellman algorithm to 512-bit export-grade cryptography [CVE-2015-4000]. The remote user may then be able to decrypt the connection.

This vulnerability resides in the TLS protocol and not in the specific TLS implementation, but the vulnerability is exposed because the target system supports export-grade ciphers. This attack is known as the "Logjam" attack.

A remote user (server) can exploit a flaw in Network Security Services (NSS) by failing to send the ServerKeyExchange message as part of a ECDHE_ECDSA exchange to cause the target NSS client to use the EC key from the ECDSA certificate, a downgraded exchange [CVE-2015-2721].

Bob Clary, Christian Holler, Bobby Holley, Andrew McCreight, Terrence Cole, Steve Fink, Mats Palmgren, Wes Kocher, Andreas Pehrson, Tooru Fujisawa, Andrew Sutherland, Gary Kwong, Herre, Looben Yan, Ronald Crane, David Keeler, Matthew Green, David Adrian et al, and Karthikeyan Bhargavan reported these vulnerabilities.

Impact:   A remote user can execute arbitrary code on the target system.

A remote user can bypass security controls on the target system.

A remote user can obtain potentially sensitive information.

Solution:   The vendor has issued a fix (38.1).

The vendor's advisories are available at:

https://www.mozilla.org/en-US/security/advisories/mfsa2015-59/
https://www.mozilla.org/en-US/security/advisories/mfsa2015-63/
https://www.mozilla.org/en-US/security/advisories/mfsa2015-65/
https://www.mozilla.org/en-US/security/advisories/mfsa2015-66/
https://www.mozilla.org/en-US/security/advisories/mfsa2015-67/
https://www.mozilla.org/en-US/security/advisories/mfsa2015-70/
https://www.mozilla.org/en-US/security/advisories/mfsa2015-71/

Vendor URL:  www.mozilla.org/en-US/security/advisories/mfsa2015-59/ (Links to External Site)
Cause:   Access control error, Authentication error, Boundary error
Underlying OS:  Linux (Any), UNIX (Any), Windows (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Jul 20 2015 (CentOS Issues Fix) Mozilla Thunderbird Multiple Flaws Let Remote Users Execute Arbitrary Code, Obtain Potentially Sensitive Information, and Bypass Security Restrictions
CentOS has issued a fix for CentOS 5, 6, and 7.
Jul 20 2015 (Oracle Issues Fix for Oracle Linux) Mozilla Thunderbird Multiple Flaws Let Remote Users Execute Arbitrary Code, Obtain Potentially Sensitive Information, and Bypass Security Restrictions
Oracle has issued a fix for Oracle Linux 6 and 7.
Jul 21 2015 (Ubuntu Issues Fix) Mozilla Thunderbird Multiple Flaws Let Remote Users Execute Arbitrary Code, Obtain Potentially Sensitive Information, and Bypass Security Restrictions
Ubuntu has issued a fix for Ubuntu 12.04 LTS, 14.04 LTS, 14.10, and 15.04.
Dec 11 2015 (HP Issues Fix) Mozilla Thunderbird Multiple Flaws Let Remote Users Execute Arbitrary Code, Obtain Potentially Sensitive Information, and Bypass Security Restrictions
HP has issued a fix for HP-UX.



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