CVE-2019-9513
7.5
HIGH
CVSS 3.1
EPSS 82.0%
Description
Some HTTP/2 implementations are vulnerable to resource loops, potentially leading to a denial of service. The attacker creates multiple request streams and continually shuffles the priority of the streams in a way that causes substantial churn to the priority tree. This can consume excess CPU.
How to fix CVE-2019-9513
To remediate CVE-2019-9513, upgrade the affected package to a fixed version below.
- Alpine/nghttp2—upgrade to 1.39.2-r0 or later
- —upgrade to 1.16.1-r0 or later
- —upgrade to 10.16.3-r0 or later
Is CVE-2019-9513 being exploited?
Likely — EPSS is 82.0%, placing CVE-2019-9513 in the top tier of vulnerabilities by exploitation probability. Prioritise patching.
Affected packages (3)
- from 0, < 1.39.2-r0
- >= 1.9.5, < 1.16.1-r0
- from 0, < 10.16.3-r0
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 |