VDB
DEBIAN-CVE-2020-11080
DEBIAN-CVE-2020-11080
PUBLISHED
CVSS 7.5 HIGH
In nghttp2 before version 1.41.0, the overly large HTTP/2 SETTINGS frame payload causes denial of service. The proof of concept attack involves a malicious client constructing a SETTINGS frame with a length of 14,400 bytes (2400 individual settings entries) over and over again. The attack causes the CPU to spike at 100%. nghttp2 v1.41.0 fixes this vulnerability. There is a workaround to this vulnerability. Implement nghttp2_on_frame_recv_callback callback, and if received frame is SETTINGS frame and the number of settings entries are large (e.g., > 32), then drop the connection.
Risk Scores
CVSS 3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:14 | nghttp2 | 0, 0, 0 |
| Debian:12 | nodejs | 0, 0, 0 |
| Debian:14 | nodejs | 0, 0, 0 |
| Debian:13 | nghttp2 | 0, 0, 0 |
| Debian:13 | nodejs | 0, 0, 0 |
| Debian:11 | nodejs | 0, 0, 0 |
| Debian:12 | nghttp2 | 0, 0, 0 |
| Debian:11 | nghttp2 | 0, 0, 0 |
| Debian | nghttp2 |
Timeline
- Jun 3, 2020 CVE Published
- Apr 28, 2026 CVE Updated