CVE-2019-9518

Description

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.

References

https://kb.cert.org/vuls/id/605641/

https://github.com/Netflix/security-bulletins/blob/master/advisories/third-party/2019-002.md

https://seclists.org/bugtraq/2019/Aug/24

http://seclists.org/fulldisclosure/2019/Aug/16

https://www.synology.com/security/advisory/Synology_SA_19_33

https://support.f5.com/csp/article/K46011592

https://lists.apache.org/thread.html/[email protected]%3Cusers.trafficserver.apache.org%3E

https://lists.apache.org/thread.html/[email protected]%3Cannounce.trafficserver.apache.org%3E

https://lists.apache.org/thread.html/[email protected]%3Cdev.trafficserver.apache.org%3E

https://security.netapp.com/advisory/ntap-20190823-0005/

https://lists.fedoraproject.org/archives/list/[email protected]/message/CMNFX5MNYRWWIMO4BTKYQCGUDMHO3AXP/

https://lists.fedoraproject.org/archives/list/[email protected]/message/4ZQGHE3WTYLYAYJEIDJVF2FIGQTAYPMC/

https://www.debian.org/security/2019/dsa-4520

https://seclists.org/bugtraq/2019/Sep/18

http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00032.html

http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00031.html

https://kc.mcafee.com/corporate/index?page=content&id=SB10296

https://access.redhat.com/errata/RHSA-2019:2925

https://access.redhat.com/errata/RHSA-2019:2939

https://access.redhat.com/errata/RHSA-2019:2955

https://support.f5.com/csp/article/K46011592?utm_source=f5support&utm_medium=RSS

https://access.redhat.com/errata/RHSA-2019:3892

https://lists.apache.org/thread.html/[email protected]%3Ccommits.druid.apache.org%3E

https://access.redhat.com/errata/RHSA-2019:4352

https://access.redhat.com/errata/RHSA-2020:0727

https://lists.apache.org/thread.html/[email protected]%3Ccommits.cassandra.apache.org%3E

https://lists.apache.org/thread.html/[email protected]%3Ccommits.cassandra.apache.org%3E

Details

Risk Information

CVSS v2

CVSS v3