Vulnerability CVE-2015-5738


Published: 2016-07-26

Description:
The RSA-CRT implementation in the Cavium Software Development Kit (SDK) 2.x, when used on OCTEON II CN6xxx Hardware on Linux to support TLS with Perfect Forward Secrecy (PFS), makes it easier for remote attackers to obtain private RSA keys by conducting a Lenstra side-channel attack.

Vendor: Fortinet
Product: Fortios 
Version:
5.4.0
5.2.5
5.0.12
Vendor: Cavium
Product: Software development kit 
Version: 2.0;
Product: Octeon ii cn6870 
Product: Octeon ii cn6860 
Product: Octeon ii cn6880 
Vendor: Linux
Product: Linux kernel 

CVSS2 => (AV:N/AC:L/Au:N/C:C/I:N/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.8/10
6.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
None
None

 References:
http://fortiguard.com/advisory/rsa-crt-key-leak-under-certain-conditions
https://people.redhat.com/~fweimer/rsa-crt-leaks.pdf
https://support.f5.com/kb/en-us/solutions/public/k/91/sol91245485.html

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