Vulnerability Description
In BIG-IP 14.0.0-14.0.0.2, 13.0.0-13.1.1.5, 12.1.0-12.1.4.1, and 11.2.1-11.6.3.2, an attacker sending specially crafted SSL records to a SSL Virtual Server will cause corruption in the SSL data structures leading to intermittent decrypt BAD_RECORD_MAC errors. Clients will be unable to access the application load balanced by a virtual server with an SSL profile until tmm is restarted.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| F5 | Big-Ip Local Traffic Manager | >= 11.2.1, <= 11.5.6 |
| F5 | Big-Ip Advanced Firewall Manager | >= 11.2.1, <= 11.5.6 |
| F5 | Big-Ip Application Acceleration Manager | >= 11.2.1, <= 11.5.6 |
| F5 | Big-Ip Analytics | >= 11.2.1, <= 11.5.6 |
| F5 | Big-Ip Access Policy Manager | >= 11.2.1, <= 11.5.6 |
| F5 | Big-Ip Protocol Security Module | >= 11.2.1, <= 11.5.6 |
| F5 | Big-Ip Domain Name System | >= 11.2.1, <= 11.5.6 |
| F5 | Big-Ip Edge Gateway | >= 11.2.1, <= 11.5.6 |
| F5 | Big-Ip Fraud Protection Service | >= 11.2.1, <= 11.5.6 |
| F5 | Big-Ip Global Traffic Manager | >= 11.2.1, <= 11.5.6 |
| F5 | Big-Ip Link Controller | >= 11.2.1, <= 11.5.6 |
| F5 | Big-Ip Policy Enforcement Manager | >= 11.2.1, <= 11.5.6 |
| F5 | Big-Ip Webaccelerator | >= 11.2.1, <= 11.5.6 |
References
- https://support.f5.com/csp/article/K43625118MitigationVendor Advisory
- https://support.f5.com/csp/article/K43625118?utm_source=f5support&%3Butm_medi
- https://support.f5.com/csp/article/K43625118MitigationVendor Advisory
- https://support.f5.com/csp/article/K43625118?utm_source=f5support&%3Butm_medi
FAQ
What is CVE-2018-15317?
CVE-2018-15317 is a vulnerability with a CVSS score of 7.5 (HIGH). In BIG-IP 14.0.0-14.0.0.2, 13.0.0-13.1.1.5, 12.1.0-12.1.4.1, and 11.2.1-11.6.3.2, an attacker sending specially crafted SSL records to a SSL Virtual Server will cause corruption in the SSL data struct...
How severe is CVE-2018-15317?
CVE-2018-15317 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2018-15317?
Check the references section above for vendor advisories and patch information. Affected products include: F5 Big-Ip Local Traffic Manager, F5 Big-Ip Advanced Firewall Manager, F5 Big-Ip Application Acceleration Manager, F5 Big-Ip Analytics, F5 Big-Ip Access Policy Manager.