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
Link Providers
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00031.html cve-icon cve-icon
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00032.html cve-icon cve-icon
http://seclists.org/fulldisclosure/2019/Aug/16 cve-icon cve-icon
https://access.redhat.com/errata/RHSA-2019:2925 cve-icon cve-icon
https://access.redhat.com/errata/RHSA-2019:2939 cve-icon cve-icon
https://access.redhat.com/errata/RHSA-2019:2955 cve-icon cve-icon
https://access.redhat.com/errata/RHSA-2019:3892 cve-icon cve-icon
https://access.redhat.com/errata/RHSA-2019:4352 cve-icon cve-icon
https://access.redhat.com/errata/RHSA-2020:0727 cve-icon cve-icon
https://github.com/Netflix/security-bulletins/blob/master/advisories/third-party/2019-002.md cve-icon cve-icon cve-icon
https://kb.cert.org/vuls/id/605641/ cve-icon cve-icon
https://kc.mcafee.com/corporate/index?page=content&id=SB10296 cve-icon cve-icon
https://lists.apache.org/thread.html/091b518265bce56a16af87b77c8cfacda902a02079e866f9fdf13b61%40%3Cusers.trafficserver.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/2653c56545573b528f3f6352a29eccaf498bd6fb2a6a59568d81a61d%40%3Cannounce.trafficserver.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/9317fd092b257a0815434b116a8af8daea6e920b6673f4fd5583d5fe%40%3Ccommits.druid.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/ff5b0821a6985159a832ff6d1a4bd311ac07ecc7db1e2d8bab619107%40%3Cdev.trafficserver.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/r99a625fb17032646d96cd23dec49603ff630e9318e44a686d63046bc%40%3Ccommits.cassandra.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/rd31230d01fa6aad18bdadc0720acd1747e53690bd35f73a48e7a9b75%40%3Ccommits.cassandra.apache.org%3E cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4ZQGHE3WTYLYAYJEIDJVF2FIGQTAYPMC/ cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CMNFX5MNYRWWIMO4BTKYQCGUDMHO3AXP/ cve-icon cve-icon
https://nodejs.org/en/blog/vulnerability/aug-2019-security-releases/ cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2019-9518 cve-icon
https://seclists.org/bugtraq/2019/Aug/24 cve-icon cve-icon
https://seclists.org/bugtraq/2019/Sep/18 cve-icon cve-icon
https://security.netapp.com/advisory/ntap-20190823-0005/ cve-icon cve-icon
https://support.f5.com/csp/article/K46011592 cve-icon cve-icon
https://support.f5.com/csp/article/K46011592?utm_source=f5support&amp%3Butm_medium=RSS cve-icon cve-icon
https://www.cve.org/CVERecord?id=CVE-2019-9518 cve-icon
https://www.debian.org/security/2019/dsa-4520 cve-icon cve-icon
https://www.synology.com/security/advisory/Synology_SA_19_33 cve-icon cve-icon
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: certcc

Published: 2019-08-13T20:50:59

Updated: 2024-08-04T21:54:44.510Z

Reserved: 2019-03-01T00:00:00

Link: CVE-2019-9518

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2019-08-13T21:15:13.003

Modified: 2024-11-21T04:51:47.587

Link: CVE-2019-9518

cve-icon Redhat

Severity : Important

Publid Date: 2019-08-13T17:00:00Z

Links: CVE-2019-9518 - Bugzilla