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CVE-2019-9518

Published: Aug 13, 2019Updated: Jan 14, 2025 Sources: CVE List NVD BDUCWE-400
NVD MITRE
7.5CVSSHIGH
EPSS Score
24.8%
Top 2.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-400CWE-770

Affected Products

Windows 10Microsoft Corp
On-premOS
Operating Systems / windows
Windows 10 1607Microsoft Corp
On-premOS
Operating Systems / windows
Windows 10 1703Microsoft Corp
On-premOS
Operating Systems / windows
Windows Server 2016Microsoft Corp
On-premOS
Operating Systems / windows
Windows Server 2016 (Server Core installation)Microsoft Corp
On-premOS
Operating Systems / windows
microsoft corpcommercialUSOperating Systemsaka microsoft corporation
and 33 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Impact
View detailed technique mapping

References

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-9518
portal.msrc.microsoft.com
https://github.com/Netflix/security-bulletins/blob/master/advisories/third-party/2019-002.md
github.com
https://www.opennet.ru/opennews/art.shtml?num=51279
opennet.ru
and 33 more references View all →

Timeline

Published
Aug 13, 2019
Last Updated
Jan 14, 2025

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