CVE-2019-9511

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CVE-2019-9511

Summary:

Details: 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.

References: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BP556LEG3WENHZI5TAQ6ZEBFTJB4E2IS/, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JUBYAF6ED3O4XCHQ5C2HYENJLXYXZC4M/, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LZLUYPYY3RX4ZJDWZRJIKSULYRJ4PXW7/, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/POPAEC4FWL4UU4LDEGPY5NPALU24FFQD/, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TAZZEVTCN2B4WT6AIBJ7XGYJMBTORJU5/, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XHTKU7YQ5EEP2XNSAV4M4VJ7QCBOJMOD/, https://support.f5.com/csp/article/K02591030?utm_source=f5support&amp%3Butm_medium=RSS, http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00031.html, http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00032.html, http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00035.html, http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00003.html, http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00005.html, http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00014.html, https://access.redhat.com/errata/RHSA-2019:2692, https://access.redhat.com/errata/RHSA-2019:2745, https://access.redhat.com/errata/RHSA-2019:2746, https://access.redhat.com/errata/RHSA-2019:2775, https://access.redhat.com/errata/RHSA-2019:2799, https://access.redhat.com/errata/RHSA-2019:2925, https://access.redhat.com/errata/RHSA-2019:2939, https://access.redhat.com/errata/RHSA-2019:2949, https://access.redhat.com/errata/RHSA-2019:2955, https://access.redhat.com/errata/RHSA-2019:2966, https://access.redhat.com/errata/RHSA-2019:3041, https://access.redhat.com/errata/RHSA-2019:3932, https://access.redhat.com/errata/RHSA-2019:3933, https://access.redhat.com/errata/RHSA-2019:3935, https://access.redhat.com/errata/RHSA-2019:4018, https://access.redhat.com/errata/RHSA-2019:4019, https://access.redhat.com/errata/RHSA-2019:4020, https://access.redhat.com/errata/RHSA-2019:4021, https://github.com/Netflix/security-bulletins/blob/master/advisories/third-party/2019-002.md, https://kb.cert.org/vuls/id/605641/, https://kc.mcafee.com/corporate/index?page=content&id=SB10296, https://seclists.org/bugtraq/2019/Aug/40, https://seclists.org/bugtraq/2019/Sep/1, https://security.netapp.com/advisory/ntap-20190823-0002/, https://security.netapp.com/advisory/ntap-20190823-0005/, https://support.f5.com/csp/article/K02591030, https://usn.ubuntu.com/4099-1/, https://www.debian.org/security/2019/dsa-4505, https://www.debian.org/security/2019/dsa-4511, https://www.debian.org/security/2020/dsa-4669, https://www.oracle.com/security-alerts/cpujan2021.html, https://www.oracle.com/security-alerts/cpuoct2020.html, https://www.synology.com/security/advisory/Synology_SA_19_33, https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html