Buffer overflow in F5 Big-Ip Domain Name System
CVE-2021-22982
On BIG-IP DNS and GTM version 13.1.x before 13.1.0.4, and all versions of 12.1.x and 11.6.x, big3d does not securely handle and parse certain payloads resulting in a buffer overflow. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.010 (62.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 62nd percentile — 62.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: +0.000
Affected products
- F5 Big-Ip Domain Name System
- F5 Big-Ip Global Traffic Manager
- Big-Ip DNS And Gtm — versions 13.1.x before 13.1.0.4, and all versions of 12.1.x and 11.6.x
Weakness classification (CWE)
References
- support.f5.com/csp/article/K72708443 (Vendor Advisory)
Frequently asked questions
- What is CVE-2021-22982?
- CVE-2021-22982 is a high-severity vulnerability in F5 Big-Ip Domain Name System, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.2/10. Published 2021-02-12.
- How severe is CVE-2021-22982?
- High severity. CVSS v3 base score is 7.2 out of 10.