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CVE-2019-9518

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CVE-2019-9518

Published: Aug 13, 2019

Modified: Aug 4, 2024

PUBLISHED

CVSS v3.0

7.5

HIGH

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.

VendorProductVersions

n/a

n/a

affected
n/a

Weaknesses (CWE)

CVSS v3.0 Details

CVSS v3.0 Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

References

VU#605641
third-party-advisory
x_refsource_CERT-VN
FEDORA-2019-5a6a7bc12c
vendor-advisory
x_refsource_FEDORA
FEDORA-2019-6a2980de56
vendor-advisory
x_refsource_FEDORA
DSA-4520
vendor-advisory
x_refsource_DEBIAN
openSUSE-SU-2019:2114
vendor-advisory
x_refsource_SUSE
openSUSE-SU-2019:2115
vendor-advisory
x_refsource_SUSE
RHSA-2019:2925
vendor-advisory
x_refsource_REDHAT
RHSA-2019:2939
vendor-advisory
x_refsource_REDHAT
RHSA-2019:2955
vendor-advisory
x_refsource_REDHAT
RHSA-2019:3892
vendor-advisory
x_refsource_REDHAT
RHSA-2019:4352
vendor-advisory
x_refsource_REDHAT
RHSA-2020:0727
vendor-advisory
x_refsource_REDHAT

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