Mozilla Thunderbird < 31.1.2 / ESR 24.8.1 RSA Signature Forgery in NSS

High Nessus Network Monitor Plugin ID 8412


The remote host is running a mail client that is vulnerable to a critical issue within the Network Security Services (NSS) library.


Versions of Mozilla Thunderbird prior to 31.1.2 (or ESR version 24.8.1) utilize a vulnerable version of the Network Security Services library for cryptographic functionality. The issue occurs from incorrectly check on signature padding, leading to potential signature forgery that can be leveraged for man-in-the-middle attacks over SSL.


Upgrade to Thunderbird 31.1.2 (or ESR versions 24.8.1), or later.

See Also

Plugin Details

Severity: High

ID: 8412

Family: SMTP Clients

Published: 2014/10/06

Modified: 2017/02/02

Dependencies: 5558

Risk Information

Risk Factor: High


Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Temporal Vector: CVSS2#E:ND/RL:OF/RC:C


Base Score: 7.3

Temporal Score: 7


Temporal Vector: CVSS3#E:X/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:mozilla:firefox

Patch Publication Date: 2014/10/01

Vulnerability Publication Date: 2014/10/01

Reference Information

CVE: CVE-2014-1568

BID: 70116

IAVA: 2016-A-0293