Home/CVE/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 T
CVE

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 T

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.

HIGH · CVSS 7.5 EPSS 0.00647
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
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Affected Products & Versions

22
f5 big-ip access policy manager>= 15.1.0 and < 15.1.1
f5 big-ip access policy manager>= 16.0.0 and < 16.0.1
f5 big-ip advanced firewall manager>= 15.1.0 and < 15.1.1
f5 big-ip advanced firewall manager>= 16.0.0 and < 16.0.1
f5 big-ip analytics>= 15.1.0 and < 15.1.1
f5 big-ip analytics>= 16.0.0 and < 16.0.1
f5 big-ip application acceleration manager>= 15.1.0 and < 15.1.1
f5 big-ip application acceleration manager>= 16.0.0 and < 16.0.1
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Scoring & Timeline

7.5
HIGH · CVSS v3.1 · f5sirt@f5.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD05 Nov 2020 · 08:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://support.f5.com/csp/article/K03125360Vendor Advisory
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