Information disclosure in F5 Traffix Signaling Delivery Controller
CVE-2015-5738
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.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.024 (83.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 84th percentile — 83.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.024 · newest: 0.024 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- people.redhat.com/~fweimer/rsa-crt-leaks.pdf (Technical Description, Third Party Advisory)
- support.f5.com/kb/en-us/solutions/public/k/91/sol91245485.html (Third Party Advisory)
- fortiguard.com/advisory/rsa-crt-key-leak-under-certain-conditions (Broken Link)
Frequently asked questions
- What is CVE-2015-5738?
- CVE-2015-5738 is a high-severity vulnerability in F5 Traffix Signaling Delivery Controller, classified under Information Disclosure. CVSS score: 7.5/10. Published 2016-07-26.
- How severe is CVE-2015-5738?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2015-5738 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.