CVE-2019-9515
7.5
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| n/a | n/a | n/a | affected |
Weaknesses
- CWE-400: CWE-400 Uncontrolled Resource Consumption
ADP Enrichment
CVE Program Container
Additional References
- https://kb.cert.org/vuls/id/605641/
- https://github.com/Netflix/security-bulletins/blob/master/advisories/third-party/2019-002.md
- https://lists.apache.org/thread.html/bde52309316ae798186d783a5e29f4ad1527f61c9219a289d0eee0a7%40%3Cdev.trafficserver.apache.org%3E
- https://lists.apache.org/thread.html/392108390cef48af647a2e47b7fd5380e050e35ae8d1aa2030254c04%40%3Cusers.trafficserver.apache.org%3E
- https://lists.apache.org/thread.html/ad3d01e767199c1aed8033bb6b3f5bf98c011c7c536f07a5d34b3c19%40%3Cannounce.trafficserver.apache.org%3E
- 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/K50233772
- https://security.netapp.com/advisory/ntap-20190823-0005/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CMNFX5MNYRWWIMO4BTKYQCGUDMHO3AXP/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4ZQGHE3WTYLYAYJEIDJVF2FIGQTAYPMC/
- https://seclists.org/bugtraq/2019/Aug/43
- https://www.debian.org/security/2019/dsa-4508
- 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-2019:2766
- https://access.redhat.com/errata/RHSA-2019:2796
- https://access.redhat.com/errata/RHSA-2019:2861
- 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/K50233772?utm_source=f5support&%3Butm_medium=RSS
- https://access.redhat.com/errata/RHSA-2019:3892
- https://access.redhat.com/errata/RHSA-2019:4018
- https://access.redhat.com/errata/RHSA-2019:4019
- https://access.redhat.com/errata/RHSA-2019:4021
- https://access.redhat.com/errata/RHSA-2019:4020
- https://access.redhat.com/errata/RHSA-2019:4045
- https://access.redhat.com/errata/RHSA-2019:4042
- https://access.redhat.com/errata/RHSA-2019:4040
- https://access.redhat.com/errata/RHSA-2019:4041
- https://access.redhat.com/errata/RHSA-2019:4352
- https://access.redhat.com/errata/RHSA-2020:0727
- https://usn.ubuntu.com/4308-1/
References
- https://kb.cert.org/vuls/id/605641/
- https://github.com/Netflix/security-bulletins/blob/master/advisories/third-party/2019-002.md
- https://lists.apache.org/thread.html/bde52309316ae798186d783a5e29f4ad1527f61c9219a289d0eee0a7%40%3Cdev.trafficserver.apache.org%3E
- https://lists.apache.org/thread.html/392108390cef48af647a2e47b7fd5380e050e35ae8d1aa2030254c04%40%3Cusers.trafficserver.apache.org%3E
- https://lists.apache.org/thread.html/ad3d01e767199c1aed8033bb6b3f5bf98c011c7c536f07a5d34b3c19%40%3Cannounce.trafficserver.apache.org%3E
- 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/K50233772
- https://security.netapp.com/advisory/ntap-20190823-0005/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CMNFX5MNYRWWIMO4BTKYQCGUDMHO3AXP/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4ZQGHE3WTYLYAYJEIDJVF2FIGQTAYPMC/
- https://seclists.org/bugtraq/2019/Aug/43
- https://www.debian.org/security/2019/dsa-4508
- 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-2019:2766
- https://access.redhat.com/errata/RHSA-2019:2796
- https://access.redhat.com/errata/RHSA-2019:2861
- 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/K50233772?utm_source=f5support&%3Butm_medium=RSS
- https://access.redhat.com/errata/RHSA-2019:3892
- https://access.redhat.com/errata/RHSA-2019:4018
- https://access.redhat.com/errata/RHSA-2019:4019
- https://access.redhat.com/errata/RHSA-2019:4021
- https://access.redhat.com/errata/RHSA-2019:4020
- https://access.redhat.com/errata/RHSA-2019:4045
- https://access.redhat.com/errata/RHSA-2019:4042
- https://access.redhat.com/errata/RHSA-2019:4040
- https://access.redhat.com/errata/RHSA-2019:4041
- https://access.redhat.com/errata/RHSA-2019:4352
- https://access.redhat.com/errata/RHSA-2020:0727
- https://usn.ubuntu.com/4308-1/
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