Home/CVE/On BIG-IP 14.1.0-14.1.2.3, undisclosed requests can lead to a denial of service (DoS) when sent to BIG-IP HTTP/2 virtual
CVE

CVE-2020-5871

On BIG-IP 14.1.0-14.1.2.3, undisclosed requests can lead to a denial of service (DoS) when sent to BIG-IP HTTP/2 virtual

On BIG-IP 14.1.0-14.1.2.3, undisclosed requests can lead to a denial of service (DoS) when sent to BIG-IP HTTP/2 virtual servers. The problem can occur when ciphers, which have been blacklisted by the HTTP/2 RFC, are used on backend servers. This is a data-plane issue.

There is no control-plane exposure.

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

11
f5 big-ip access policy manager>= 14.1.0 and <= 14.1.2.3
f5 big-ip advanced firewall manager>= 14.1.0 and <= 14.1.2.3
f5 big-ip analytics>= 14.1.0 and <= 14.1.2.3
f5 big-ip application acceleration manager>= 14.1.0 and <= 14.1.2.3
f5 big-ip application security manager>= 14.1.0 and <= 14.1.2.3
f5 big-ip domain name system>= 14.1.0 and <= 14.1.2.3
f5 big-ip fraud protection service>= 14.1.0 and <= 14.1.2.3
f5 big-ip global traffic manager>= 14.1.0 and <= 14.1.2.3
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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 NVD30 Apr 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/K43450419Vendor Advisory
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