CVE-2015-5738

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2016-07-26 · updated 2026-06-17
Weakness: CWE-200

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.

Affected products

F5 Traffix SDC: from 3.3.2 through 3.5.1; from 4.0.0 through 4.4.0
Marvell Software Development Kit: 2.0

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
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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