CVE-2019-9518
7.5
HIGH
CVSS 3.1
EPSS 3.6%
Description
Some HTTP/2 implementations are vulnerable to a flood of empty frames, potentially leading to a denial of service. The attacker sends a stream of frames with an empty payload and without the end-of-stream flag. These frames can be DATA, HEADERS, CONTINUATION and/or PUSH_PROMISE. The peer spends time processing each frame disproportionate to attack bandwidth. This can consume excess CPU.
How to fix CVE-2019-9518
To remediate CVE-2019-9518, upgrade the affected package to a fixed version below.
- —upgrade to 10.16.3-r0 or later
- —upgrade to 8.0.5+ds-1 or later
Is CVE-2019-9518 being exploited?
Low — EPSS is 3.6%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 10.16.3-r0
- from 0, < 8.0.5+ds-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |