Mozilla Thunderbird < 31.1.2 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 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 later.

See Also

Plugin Details

Severity: High

ID: 8412

Family: SMTP Clients

Published: 2014/10/06

Updated: 2019/11/06

Dependencies: 5558

Nessus ID: 77901, 77906

Risk Information

Risk Factor: High

CVSS v2.0

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

CVSS v3.0

Base Score: 7.3

Temporal Score: 7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Temporal Vector: CVSS:3.0/E:X/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:mozilla:thunderbird

Patch Publication Date: 2014/10/01

Vulnerability Publication Date: 2014/10/01

Reference Information

CVE: CVE-2014-1568

BID: 70116

IAVA: 2016-A-0293