High severity · published Oct 27, 2017
CVE-2017-0303
In F5 BIG-IP LTM, AAM, AFM, Analytics, APM, ASM, DNS, GTM, Link Controller, PEM and Websafe software version 13.0.0, 12.0.0 to 12.1.2 and 11.5.1 to 11.6.1, under limited…
7.5
CVSS
2.7%
EPSS
No
On KEV
Description
In F5 BIG-IP LTM, AAM, AFM, Analytics, APM, ASM, DNS, GTM, Link Controller, PEM and Websafe software version 13.0.0, 12.0.0 to 12.1.2 and 11.5.1 to 11.6.1, under limited circumstances connections handled by a Virtual Server with an associated SOCKS profile may not be properly cleaned up, potentially leading to resource starvation. Connections may be left in the connection table which then can only be removed by restarting TMM. Over time this may lead to the BIG-IP being unable to process further connections.
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)2.7% · higher than 86% 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; 11.5.1; 11.5.2; 11.5.3; 11.5.4; 11.5.5; +7 more · source: NVD
BA
Big-ip Advanced Firewall Manager · F5
11.5.0; 11.5.1; 11.5.2; 11.5.3; 11.5.4; 11.5.5; +7 more · source: NVD
BA
Big-ip Application Acceleration Manager · F5
11.5.0; 11.5.1; 11.5.2; 11.5.3; 11.5.4; 11.5.5; +7 more · source: NVD
BA
Big-ip Application Security Manager · F5
11.5.0; 11.5.1; 11.5.2; 11.5.3; 11.5.4; 11.5.5; +7 more · source: NVD
BL
Big-ip Link Controller · F5
11.5.0; 11.5.1; 11.5.2; 11.5.3; 11.5.4; 11.5.5; +7 more · source: NVD
BL
Big-ip Local Traffic Manager · F5
11.5.0; 11.5.1; 11.5.2; 11.5.3; 11.5.4; 11.5.5; +7 more · source: NVD
BP
Big-ip Policy Enforcement Manager · F5
11.5.0; 11.5.1; 11.5.2; 11.5.3; 11.5.4; 11.5.5; +7 more · source: NVD
BW
Big-ip Websafe · F5
1.0.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-0303
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-0303
Third Party Advisory
http://www.securityfocus.com/bid/101612
Third Party Advisory
http://www.securitytracker.com/id/1039674
Vendor Advisory
https://support.f5.com/csp/article/K30201296
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