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CVE-2019-9516

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CVE-2019-9516

Published: Aug 13, 2019

Modified: Aug 4, 2024

PUBLISHED

CVSS v3.0

7.5

HIGH

Description

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.

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
USN-4099-1
vendor-advisory
x_refsource_UBUNTU
FEDORA-2019-befd924cfe
vendor-advisory
x_refsource_FEDORA
DSA-4505
vendor-advisory
x_refsource_DEBIAN
FEDORA-2019-5a6a7bc12c
vendor-advisory
x_refsource_FEDORA
FEDORA-2019-6a2980de56
vendor-advisory
x_refsource_FEDORA
FEDORA-2019-4427fd65be
vendor-advisory
x_refsource_FEDORA
FEDORA-2019-63ba15cc83
vendor-advisory
x_refsource_FEDORA
FEDORA-2019-7a0b45fdc4
vendor-advisory
x_refsource_FEDORA
openSUSE-SU-2019:2120
vendor-advisory
x_refsource_SUSE
openSUSE-SU-2019:2114
vendor-advisory
x_refsource_SUSE
openSUSE-SU-2019:2115
vendor-advisory
x_refsource_SUSE
RHSA-2019:2745
vendor-advisory
x_refsource_REDHAT
RHSA-2019:2746
vendor-advisory
x_refsource_REDHAT
RHSA-2019:2775
vendor-advisory
x_refsource_REDHAT
RHSA-2019:2799
vendor-advisory
x_refsource_REDHAT
RHSA-2019:2925
vendor-advisory
x_refsource_REDHAT
RHSA-2019:2939
vendor-advisory
x_refsource_REDHAT
RHSA-2019:2946
vendor-advisory
x_refsource_REDHAT
RHSA-2019:2950
vendor-advisory
x_refsource_REDHAT
RHSA-2019:2955
vendor-advisory
x_refsource_REDHAT
RHSA-2019:2966
vendor-advisory
x_refsource_REDHAT
openSUSE-SU-2019:2264
vendor-advisory
x_refsource_SUSE
RHSA-2019:3933
vendor-advisory
x_refsource_REDHAT
RHSA-2019:3935
vendor-advisory
x_refsource_REDHAT
RHSA-2019:3932
vendor-advisory
x_refsource_REDHAT
FEDORA-2021-d5b2c18fe6
vendor-advisory
x_refsource_FEDORA

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