Medium severity · published Oct 27, 2017
CVE-2017-6163
In F5 BIG-IP LTM, AAM, AFM, APM, ASM, Link Controller, PEM, PSM software version 12.0.0 to 12.1.2, 11.6.0 to 11.6.1, 11.4.0 to 11.5.4, when a virtual server uses the standard…
5.9
CVSS
1.7%
EPSS
No
On KEV
Description
In F5 BIG-IP LTM, AAM, AFM, APM, ASM, Link Controller, PEM, PSM software version 12.0.0 to 12.1.2, 11.6.0 to 11.6.1, 11.4.0 to 11.5.4, when a virtual server uses the standard configuration of HTTP/2 or SPDY profile with Client SSL profile, and the client initiates a number of concurrent streams beyond the advertised limit can cause a disruption of service. Remote client initiating stream beyond the advertised limit can cause a disruption of service. The Traffic Management Microkernel (TMM) data plane is exposed to this issue; the control plane is not exposed.
CVSS vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.7% · higher than 77% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BA
Big-ip Access Policy Manager · F5
11.5.0 through 11.5.4; 11.6.0; 11.6.1; 12.0.0; 12.1.0; 12.1.1; +1 more · source: NVD
BA
Big-ip Advanced Firewall Manager · F5
11.4.0 through 11.5.4; 11.6.0; 11.6.1; 12.0.0; 12.1.0; 12.1.1; +1 more · source: NVD
BA
Big-ip Application Acceleration Manager · F5
11.4.0 through 11.5.4; 11.6.0; 11.6.1; 12.0.0; 12.1.0; 12.1.1; +1 more · source: NVD
BA
Big-ip Application Security Manager · F5
11.5.0 through 11.5.4; 11.6.0; 11.6.1; 12.0.0; 12.1.0; 12.1.1; +1 more · source: NVD
BL
Big-ip Link Controller · F5
11.5.0 through 11.5.4; 11.6.0; 11.6.1; 12.0.0; 12.1.0; 12.1.1; +1 more · source: NVD
BL
Big-ip Local Traffic Manager · F5
11.4.0 through 11.5.3; 11.6.0; 11.6.1; 12.0.0; 12.1.0; 12.1.1; +1 more · source: NVD
BP
Big-ip Policy Enforcement Manager · F5
11.5.0 through 11.5.4; 11.6.0; 11.6.1; 12.0.0; 12.1.0; 12.1.1; +1 more · source: NVD
BP
Big-ip Protocol Security Module · F5
after 11.4.0 through 11.5.4; 11.6.0; 11.6.1; 12.0.0; 12.1.0; 12.1.1; +1 more · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-6163
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-6163
Third Party Advisory
http://www.securityfocus.com/bid/101606
Third Party Advisory
http://www.securitytracker.com/id/1039671
Vendor Advisory
https://support.f5.com/csp/article/K22541983
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