High severity · published Nov 5, 2020
CVE-2020-5941
On BIG-IP versions 16.0.0-16.0.0.1 and 15.1.0-15.1.0.5, using the RESOLV::lookup command within an iRule may cause the Traffic Management Microkernel (TMM) to generate a core file…
7.5
CVSS
1%
EPSS
No
On KEV
Description
On BIG-IP versions 16.0.0-16.0.0.1 and 15.1.0-15.1.0.5, using the RESOLV::lookup command within an iRule may cause the Traffic Management Microkernel (TMM) to generate a core file and restart. This issue occurs when data exceeding the maximum limit of a hostname passes to the RESOLV::lookup command.
CVSS vector
CVSS:3.1/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)1.0% · higher than 64% 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
15.1.0 before 15.1.1; 16.0.0 before 16.0.1 · source: NVD
BA
Big-ip Advanced Firewall Manager · F5
15.1.0 before 15.1.1; 16.0.0 before 16.0.1 · source: NVD
BA
Big-ip Analytics · F5
15.1.0 before 15.1.1; 16.0.0 before 16.0.1 · source: NVD
BA
Big-ip Application Acceleration Manager · F5
15.1.0 before 15.1.1; 16.0.0 before 16.0.1 · source: NVD
BA
Big-ip Application Security Manager · F5
15.1.0 before 15.1.1; 16.0.0 before 16.0.1 · source: NVD
BD
Big-ip Domain Name System · F5
15.1.0 before 15.1.1; 16.0.0 before 16.0.1 · source: NVD
BF
Big-ip Fraud Protection Service · F5
15.1.0 before 15.1.1; 16.0.0 before 16.0.1 · source: NVD
BG
Big-ip Global Traffic Manager · F5
15.1.0 before 15.1.1; 16.0.0 before 16.0.1 · source: NVD
BL
Big-ip Link Controller · F5
15.1.0 before 15.1.1; 16.0.0 before 16.0.1 · source: NVD
BL
Big-ip Local Traffic Manager · F5
15.1.0 before 15.1.1; 16.0.0 before 16.0.1 · source: NVD
BP
Big-ip Policy Enforcement Manager · F5
15.1.0 before 15.1.1; 16.0.0 before 16.0.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-5941
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-5941
Vendor Advisory
https://support.f5.com/csp/article/K03125360
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