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CVE search · CVE-2019-9511

CVE-2019-9511

high 7.5

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.

Open in the NVD CVE.org JSON

Details

Status
Modified
Published
Last changed
Source
cret@cert.org
Weakness
CWE-400, CWE-770

Severity

VersionScoreVectorSource
CVSS 3.1 high 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H nvd@nist.govPrimary
CVSS 3.0 high 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H cret@cert.orgSecondary
CVSS 2.0 high 7.8 AV:N/AC:L/Au:N/C:N/I:N/A:C nvd@nist.govPrimary

Affected products

Vendor and product from the NVD’s CPE applicability statements. Versions and conditions are on the NVD’s page.

References