CVE-2019-9514
Resource exhaustion vulnerability in h2 may lead to Denial of Service (DoS)
7.5
HIGH
CVSS 3.1
EPSS 9.3%
Description
Some HTTP/2 implementations are vulnerable to a reset flood, potentially leading to a denial of service. The attacker opens a number of streams and sends an invalid request over each stream that should solicit a stream of RST_STREAM frames from the peer. Depending on how the peer queues the RST_STREAM frames, this can consume excess memory, CPU, or both.
How to fix CVE-2019-9514
To remediate CVE-2019-9514, upgrade the affected package to a fixed version below.
- —upgrade to 10.16.3-r0 or later
- —upgrade to 0.3.24 or later
- —upgrade to 2.2.5+dfsg2-3 or later
- —upgrade to 10.16.3~dfsg-1 or later
- —no fix listed
- —upgrade to 8.0.5+ds-1 or later
Is CVE-2019-9514 being exploited?
Moderate — EPSS is 9.3%. Track this CVE but it's not at the top of the prioritisation list.
Affected packages (6)
- from 0, < 10.16.3-r0
- >= 0.0.0-0, < 0.3.24, >= 0.4.0-0, < 0.4.2
- from 0, < 2.2.5+dfsg2-3
- from 0, < 10.16.3~dfsg-1
- from 0
- 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 |