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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.

7.5
CVSS
59.5%
EPSS (exploit prob.)
99th
EPSS percentile
2019-08-13
Published

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weaknesses

CWE-400CWE-770

Affected products

VendorProductAffected versions
appleswiftnio>= 1.0.0, <= 1.4.0
applemac_os_x>= 10.12
canonicalubuntu_linux>= 14.04
apachetraffic_server>= 6.0.0, <= 6.2.3
apachetraffic_server>= 7.0.0, <= 7.1.6
apachetraffic_server>= 8.0.0, <= 8.0.3
canonicalubuntu_linux16.04
canonicalubuntu_linux18.04
canonicalubuntu_linux19.04
debiandebian_linux9.0
debiandebian_linux10.0
synologyskynasall versions
synologydiskstation_manager6.2
synologyvs960hd_firmwareall versions
synologyvs960hdall versions
fedoraprojectfedora29
fedoraprojectfedora30
opensuseleap15.0
opensuseleap15.1
redhatjboss_core_services1.0
redhatjboss_enterprise_application_platform7.2.0
redhatjboss_enterprise_application_platform7.3.0
redhatopenshift_service_mesh1.0
redhatquay3.0.0
redhatsoftware_collections1.0
redhatenterprise_linux8.0
oraclegraalvm19.2.0
mcafeeweb_gateway>= 7.7.2.0, < 7.7.2.24
mcafeeweb_gateway>= 7.8.2.0, < 7.8.2.13
mcafeeweb_gateway>= 8.1.0, < 8.2.0
f5nginx>= 1.9.5, < 1.16.1
f5nginx>= 1.17.0, <= 1.17.2
oracleenterprise_communications_broker3.1.0
oracleenterprise_communications_broker3.2.0
nodejsnode.js>= 8.0.0, <= 8.8.1
nodejsnode.js>= 8.9.0, < 8.16.1
nodejsnode.js>= 10.0.0, <= 10.12.0
nodejsnode.js>= 10.13.0, < 10.16.3
nodejsnode.js>= 12.0.0, < 12.8.1

Check a specific version with /api/v1/cve/match.

References

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2019-9511