CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:S/C:N/I:N/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
AI Score
Confidence
High
EPSS
Percentile
80.6%
Some HTTP/2 implementations are vulnerable to a header leak, potentially leading to a denial of service. The attacker sends a stream of headers with a 0-length header name and 0-length header value, optionally Huffman encoded into 1-byte or greater headers. Some implementations allocate memory for these headers and keep the allocation alive until the session dies. This can consume excess memory.
Vendor | Product | Version | CPE |
---|---|---|---|
apple | swiftnio | * | cpe:2.3:a:apple:swiftnio:*:*:*:*:*:*:*:* |
apple | mac_os_x | * | cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:* |
canonical | ubuntu_linux | * | cpe:2.3:o:canonical:ubuntu_linux:*:*:*:*:*:*:*:* |
apache | traffic_server | * | cpe:2.3:a:apache:traffic_server:*:*:*:*:*:*:*:* |
canonical | ubuntu_linux | 16.04 | cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* |
canonical | ubuntu_linux | 18.04 | cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* |
canonical | ubuntu_linux | 19.04 | cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:* |
debian | debian_linux | 9.0 | cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* |
debian | debian_linux | 10.0 | cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* |
fedoraproject | fedora | 30 | cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* |
lists.opensuse.org/opensuse-security-announce/2019-09/msg00031.html
lists.opensuse.org/opensuse-security-announce/2019-09/msg00032.html
lists.opensuse.org/opensuse-security-announce/2019-09/msg00035.html
lists.opensuse.org/opensuse-security-announce/2019-10/msg00014.html
seclists.org/fulldisclosure/2019/Aug/16
access.redhat.com/errata/RHSA-2019:2745
access.redhat.com/errata/RHSA-2019:2746
access.redhat.com/errata/RHSA-2019:2775
access.redhat.com/errata/RHSA-2019:2799
access.redhat.com/errata/RHSA-2019:2925
access.redhat.com/errata/RHSA-2019:2939
access.redhat.com/errata/RHSA-2019:2946
access.redhat.com/errata/RHSA-2019:2950
access.redhat.com/errata/RHSA-2019:2955
access.redhat.com/errata/RHSA-2019:2966
access.redhat.com/errata/RHSA-2019:3932
access.redhat.com/errata/RHSA-2019:3933
access.redhat.com/errata/RHSA-2019:3935
github.com/Netflix/security-bulletins/blob/master/advisories/third-party/2019-002.md
kb.cert.org/vuls/id/605641/
kc.mcafee.com/corporate/index?page=content&id=SB10296
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4ZQGHE3WTYLYAYJEIDJVF2FIGQTAYPMC/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BP556LEG3WENHZI5TAQ6ZEBFTJB4E2IS/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CMNFX5MNYRWWIMO4BTKYQCGUDMHO3AXP/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/H472D5HPXN6RRXCNFML3BK5OYC52CXF2/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/POPAEC4FWL4UU4LDEGPY5NPALU24FFQD/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TAZZEVTCN2B4WT6AIBJ7XGYJMBTORJU5/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XHTKU7YQ5EEP2XNSAV4M4VJ7QCBOJMOD/
seclists.org/bugtraq/2019/Aug/24
seclists.org/bugtraq/2019/Aug/40
security.netapp.com/advisory/ntap-20190823-0002/
security.netapp.com/advisory/ntap-20190823-0005/
support.f5.com/csp/article/K02591030
support.f5.com/csp/article/K02591030?utm_source=f5support&%3Butm_medium=RSS
usn.ubuntu.com/4099-1/
www.debian.org/security/2019/dsa-4505
www.synology.com/security/advisory/Synology_SA_19_33
More
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:S/C:N/I:N/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
AI Score
Confidence
High
EPSS
Percentile
80.6%