NetSight
IP …
high7.5

CVE-2019-9518

Some HTTP/2 implementations are vulnerable to a flood of empty frames, potentially leading to a denial of service.

Impact

Some HTTP/2 implementations are vulnerable to a flood of empty frames, potentially leading to a denial of service. The attacker sends a stream of frames with an empty payload and without the end-of-stream flag. These frames can be DATA, HEADERS, CONTINUATION and/or PUSH_PROMISE. The peer spends time processing each frame disproportionate to attack bandwidth. This can consume excess CPU.

Affected products

VendorProductAffected versions
AppleSwiftnio
from 1.0.0 through 1.4.0
ApacheTraffic Server
from 6.0.0 through 6.2.3
from 7.0.0 through 7.1.6
from 8.0.0 through 8.0.3
CanonicalUbuntu Linux
Versions 16.04, 18.04, 19.04
DebianDebian Linux
Versions 9.0, 10.0
SynologySkynas
All versions
SynologyDiskstation Manager
Version 6.2
SynologyVs960hd Firmware
All versions
FedoraprojectFedora
Versions 29, 30
OpensuseLeap
Versions 15.0, 15.1
RedhatJboss Core Services
Version 1.0
RedhatJboss Enterprise Application Platform
Versions 7.2.0, 7.3.0
RedhatOpenshift Service Mesh
Version 1.0

Weakness classification

CWE-400CWE-770

References