VULNERABILITY INTELLIGENCE
CVE-2019-9513
CVSS score7.5 HIGH
EPSS probability81.56%
CISA KEVNot currently listed
Published2019-08-13
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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.
Weakness classification
- CWE-400: Uncontrolled Resource Consumption
Primary references
- cret@cert.org — Mailing List, Third Party Advisory
- cret@cert.org — Mailing List, Third Party Advisory
- cret@cert.org — Mailing List, Third Party Advisory
- cret@cert.org — Mailing List, Third Party Advisory
- cret@cert.org — Mailing List, Third Party Advisory
- cret@cert.org — Mailing List, Third Party Advisory
- cret@cert.org — Third Party Advisory
- cret@cert.org — Third Party Advisory
- cret@cert.org — Third Party Advisory
- cret@cert.org — Third Party Advisory
- cret@cert.org — Third Party Advisory
- cret@cert.org — Third Party Advisory