CVE-2018-5513

high-risk
Published 2018-06-01

On F5 BIG-IP 13.1.0-13.1.0.3, 13.0.0, 12.1.0-12.1.3.3, 11.6.1-11.6.3.1, 11.5.1-11.5.5, or 11.2.1, a malformed TLS handshake causes TMM to crash leading to a disruption of service. This issue is only exposed on the data plane when Proxy SSL configuration is enabled. The control plane is not impacted by this issue.

Do I need to act?

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0.75% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.5/10 High
NETWORK / LOW complexity

Affected Products (20)

Affected Vendors

F5

References (4)

Third Party Advisory http://www.securitytracker.com/id/1041017
Vendor Advisory https://support.f5.com/csp/article/K46940010
Third Party Advisory http://www.securitytracker.com/id/1041017
Vendor Advisory https://support.f5.com/csp/article/K46940010
50
/ 100
high-risk
Severity 26/34 · High
Exploitability 3/34 · Minimal
Exposure 21/34 · High