TCP Packet Malformed Attack on F5 BIG-IP Devices
CVE-2018-5517

7.5HIGH

Key Information:

Vendor

F5
Status
Big-ip (ltm, Aam, Afm, Analytics, Apm, Asm, Dns, Edge Gateway, Gtm, Link Controller, Pem, Webaccelerator, Websafe)
Vendor
CVE Published:
2 May 2018

What is CVE-2018-5517?

The vulnerability allows for denial of service through the exploitation of malformed TCP packets directed at self IP addresses or FastL4 virtual servers on F5 BIG-IP devices. This issue can interrupt services running on the affected data plane virtual servers and self IPs, although the control plane remains unaffected. Users of BIG-IP versions 13.1.0 through 13.1.0.5 should be aware of this risk to ensure their systems are secured against potential attacks.

Affected Version(s)

BIG-IP (LTM, AAM, AFM, Analytics, APM, ASM, DNS, Edge Gateway, GTM, Link Controller, PEM, WebAccelerator, WebSafe) 13.1.0-13.1.0.5

References

http://www.securitytracker.com/id/1040805
vdb-entryx_refsource_SECTRACK
https://support.f5.com/csp/article/K25573437
x_refsource_CONFIRM

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.