CVE-2021-23011 — Uncontrolled Resource Consumption in F5 Big-ip Domain Name System

CWE-400 — Uncontrolled Resource Consumption4 documents4 sources
Severity
7.5HIGHNVD
EPSS
0.6%
top 29.22%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
14
F5 Big-ip Access Policy ManagerF5 Big-ip Advanced Firewall ManagerF5 Big-ip Advanced WEB Application Firewall+11 more
Timeline
PublishedMay 10
Latest updateMay 24

Description

On versions 16.0.x before 16.0.1.1, 15.1.x before 15.1.3, 14.1.x before 14.1.4, 13.1.x before 13.1.4, 12.1.x before 12.1.6, and 11.6.x before 11.6.5.3, when the BIG-IP system is buffering packet fragments for reassembly, the Traffic Management Microkernel (TMM) may consume an excessive amount of resources, eventually leading to a restart and failover event. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages15 packages

▶NVDf5/big-ip_domain_name_system11.6.1 — 11.6.5.3+5
▶NVDf5/big-ip_local_traffic_manager11.6.1 — 11.6.5.3+5
▶NVDf5/big-ip_global_traffic_manager11.6.1 — 11.6.5.3+5
▶NVDf5/big-ip_analytics11.6.1 — 11.6.5.3+5
▶NVDf5/big-ip_link_controller11.6.1 — 11.6.5.3+5

🔴Vulnerability Details

2
GHSA
GHSA-65cc-qw75-2gw6: On versions 16↗2022-05-24
▶
CVEList
CVE-2021-23011: On versions 16↗2021-05-10
▶

📋Vendor Advisories

1
F5
CVE-2021-23011: On versions 16↗2021-05-10
▶
CVE-2021-23011 — Uncontrolled Resource Consumption | cvebase