High severity · published Aug 26, 2016
CVE-2016-5023
Virtual servers in F5 BIG-IP systems 11.2.1 HF11 through HF15, 11.4.1 HF4 through HF10, 11.5.3 through 11.5.4, 11.6.0 HF5 through HF7, and 12.0.0, when configured with a TCP…
7.5
CVSS
3%
EPSS
No
On KEV
Description
Virtual servers in F5 BIG-IP systems 11.2.1 HF11 through HF15, 11.4.1 HF4 through HF10, 11.5.3 through 11.5.4, 11.6.0 HF5 through HF7, and 12.0.0, when configured with a TCP profile, allow remote attackers to cause a denial of service (Traffic Management Microkernel restart) via crafted network traffic.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.0% · higher than 87% 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
11.2.1; 11.4.1; 11.5.3; 11.5.4; 11.6.0; 12.0.0 · source: NVD
BA
Big-ip Advanced Firewall Manager · F5
11.4.1; 11.5.3; 11.5.4; 11.6.0; 12.0.0 · source: NVD
BA
Big-ip Analytics · F5
11.2.1; 11.4.1; 11.5.3; 11.5.4; 11.6.0; 12.0.0 · source: NVD
BA
Big-ip Application Acceleration Manager · F5
11.4.1; 11.5.3; 11.5.4; 11.6.0; 12.0.0 · source: NVD
BA
Big-ip Application Security Manager · F5
11.2.1; 11.4.1; 11.5.3; 11.5.4; 11.6.0; 12.0.0 · source: NVD
BD
Big-ip Domain Name System · F5
12.0.0 · source: NVD
BE
Big-ip Edge Gateway · F5
11.2.1 · source: NVD
BG
Big-ip Global Traffic Manager · F5
11.2.1; 11.4.1; 11.5.3; 11.5.4; 11.6.0 · source: NVD
BL
Big-ip Link Controller · F5
11.2.1; 11.4.1; 11.5.3; 11.5.4; 11.6.0; 12.0.0; +6 more · source: NVD
BP
Big-ip Policy Enforcement Manager · F5
11.4.1; 11.5.3; 11.5.4; 11.6.0; 12.0.0 · source: NVD
BP
Big-ip Protocol Security Module · F5
11.2.1; 11.4.1 · source: NVD
BW
Big-ip Wan Optimization Manager · F5
11.2.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-5023
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-5023
Third Party Advisory
http://www.securityfocus.com/bid/92670
Third Party Advisory
http://www.securitytracker.com/id/1036624
Vendor Advisory
https://support.f5.com/kb/en-us/solutions/public/k/19/sol19784568.html
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