Maple Labs

CVE search · CVE-2019-9515

CVE-2019-9515

high 7.5

Some HTTP/2 implementations are vulnerable to a settings flood, potentially leading to a denial of service. The attacker sends a stream of SETTINGS frames to the peer. Since the RFC requires that the peer reply with one acknowledgement per SETTINGS frame, an empty SETTINGS frame is almost equivalent in behavior to a ping. 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