60
CVE-2019-9511
—CVSS 3.1
7.5 high
EPSS
60%p99
Published
()
Modified
Description
Some HTTP/2 implementations are vulnerable to window size manipulation and stream prioritization manipulation, potentially leading to a denial of service. The attacker requests a large amount of data from a specified resource over multiple streams. They manipulate window size and stream priority to force the server to queue the data in 1-byte chunks. Depending on how efficiently this data is queued, this can consume excess CPU, memory, or both.
- Vendors
- appleapachecanonicaldebiansynologyfedoraprojectopensuseredhatoraclemcafeef5nodejs
- Products
- swiftnio, traffic server, ubuntu linux, debian linux, skynas, diskstation manager, vs960hd firmware, fedora, leap, jboss core services, jboss enterprise application platform, openshift service mesh
- Weakness
- CWE-400, CWE-770
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H