Resource exhaustion in F5 Big-Ip
CVE-2022-26372
On F5 BIG-IP 15.1.x versions prior to 15.1.0.2, 14.1.x versions prior to 14.1.4.6, 13.1.x versions prior to 13.1.5, and all versions of 12.1.x and 11.6.x, when a DNS listener is configured on a virtual server with DNS queueing (default), undisclosed requests can cause an increase in memory resource utilization. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Vulnerability class: DoS (Denial of Service)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.009 (58.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 58.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: +0.000
Affected products
- F5 Big-Ip — versions 12.1.x, 11.6.x, 16.0.0
- F5 Big-Ip Access Policy Manager — versions 11.6.1, 11.6.2, 11.6.3
- F5 Big-Ip Advanced Firewall Manager — versions 11.6.1, 11.6.2, 11.6.3
- F5 Big-Ip Analytics — versions 11.6.1, 11.6.2, 11.6.3
- F5 Big-Ip Application Acceleration Manager — versions 11.6.1, 11.6.2, 11.6.3
- F5 Big-Ip Application Security Manager — versions 11.6.1, 11.6.2, 11.6.3
- F5 Big-Ip Domain Name System — versions 11.6.1, 11.6.2, 11.6.3
- F5 Big-Ip Fraud Protection Service — versions 11.6.1, 11.6.2, 11.6.3
- F5 Big-Ip Global Traffic Manager — versions 11.6.1, 11.6.2, 11.6.3
- F5 Big-Ip Link Controller — versions 11.6.1, 11.6.2, 11.6.3
Weakness classification (CWE)
References
- support.f5.com/csp/article/K23454411 (Vendor Advisory)
Frequently asked questions
- What is CVE-2022-26372?
- CVE-2022-26372 is a high-severity vulnerability in F5 Big-Ip, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2022-05-05.
- How severe is CVE-2022-26372?
- High severity. CVSS v3 base score is 7.5 out of 10.