CVE-2018-0956
published 2018-04-12CVE-2018-0956: A denial of service vulnerability exists in the HTTP 2.0 protocol stack (HTTP.sys) when HTTP.sys improperly parses specially crafted HTTP 2.0 requests, aka…
PriorityP343high7.5CVSS 3.0
AVNACLPRNUINSUCNINAH
EPSS
12.40%
96.1th percentile
A denial of service vulnerability exists in the HTTP 2.0 protocol stack (HTTP.sys) when HTTP.sys improperly parses specially crafted HTTP 2.0 requests, aka "HTTP.sys Denial of Service Vulnerability." This affects Windows Server 2016, Windows 10, Windows 10 Servers.
Affected
29 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10_servers | — | — |
| microsoft | windows_server_2016 | — | — |
| microsoft | windows_server_2016 | — | — |
| msrc | windows_10_for_32-bit_systems | — | — |
| msrc | windows_10_for_x64-based_systems | — | — |
| msrc | windows_10_version_1511_for_32-bit_systems | — | — |
| msrc | windows_10_version_1511_for_x64-based_systems | — | — |
| msrc | windows_10_version_1607_for_32-bit_systems | — | — |
| msrc | windows_10_version_1607_for_x64-based_systems | — | — |
| msrc | windows_10_version_1703_for_32-bit_systems | — | — |
| msrc | windows_10_version_1703_for_x64-based_systems | — | — |
CVSS provenance
nvdv3.07.5HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvdv2.07.8HIGHAV:N/AC:L/Au:N/C:N/I:N/A:C
vendor_msrc7.5HIGH
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Microsoft
HTTP/2 Server Denial of Service Vulnerability
vendor_msrc·2018-04-10·CVSS 7.5
CVE-2018-0956 [HIGH] HTTP/2 Server Denial of Service Vulnerability
HTTP/2 Server Denial of Service Vulnerability
Description: A denial of service vulnerability exists in the HTTP/2 protocol stack (HTTP.sys) when HTTP.sys improperly parses specially crafted HTTP/2 requests. An attacker who successfully exploited the vulnerability could create a denial of service condition, causing the target system to become unresponsive.
To exploit this vulnerability, an unauthenticated attacker could send a specially crafted HTTP packet to a target system, causing the affected system to become nonresponsive.
The update addresses the vulnerability by modifying how the Windows HTTP protocol stack handles HTTP/2 requests. Note that the denial of service vulnerability would not allow an attacker to execute code or to elevate user rights.
Windows IIS: Windows IIS
Impact: D
GHSA
GHSA-g2h3-89xx-5947: A denial of service vulnerability exists in the HTTP 2
ghsa_unreviewed·2022-05-13
CVE-2018-0956 [HIGH] GHSA-g2h3-89xx-5947: A denial of service vulnerability exists in the HTTP 2
A denial of service vulnerability exists in the HTTP 2.0 protocol stack (HTTP.sys) when HTTP.sys improperly parses specially crafted HTTP 2.0 requests, aka "HTTP.sys Denial of Service Vulnerability." This affects Windows Server 2016, Windows 10, Windows 10 Servers.
No detection rules found.
No public exploits indexed.
Talos
Microsoft Patch Tuesday - April 2018
blogs_talos·2018-04-10·CVSS 7.5
[HIGH] Microsoft Patch Tuesday - April 2018
## Microsoft Patch Tuesday - April 2018
## Microsoft Patch Tuesday - April 2018 Today, Microsoft has released its monthly set of security advisories for vulnerabilities that have been identified and addressed in various products. This month's advisory release addresses 65 new vulnerabilities and one advisory, with 25 of them rated critical, 39 of them rated important and one of them rated moderate. These vulnerabilities impact Microsoft Windows, Internet Explorer, Microsoft Edge, Microsoft Office, Windows kernel, Windows Hyper-V, Microsoft Scripting Engine and more.
In addition, an update for Adobe Flash Player was released.
## Critical Vulnerabilities This month, Microsoft is addressing 25 vulnerabilities that are rated "critical".
The vulnerabilities rated as "critical" are listed be
Talos
Microsoft Patch Tuesday - April 2018
blogs_talos·2018-04-10·CVSS 7.5
[HIGH] Microsoft Patch Tuesday - April 2018
## Microsoft Patch Tuesday - April 2018Today, Microsoft has released its monthly set of security advisories for vulnerabilities that have been identified and addressed in various products. This month's advisory release addresses 65 new vulnerabilities and one advisory, with 25 of them rated critical, 39 of them rated important and one of them rated moderate. These vulnerabilities impact Microsoft Windows, Internet Explorer, Microsoft Edge, Microsoft Office, Windows kernel, Windows Hyper-V, Microsoft Scripting Engine and more.
In addition, an update for Adobe Flash Player was released.
### Critical VulnerabilitiesThis month, Microsoft is addressing 25 vulnerabilities that are rated "critical".
The vulnerabilities rated as "critical" are listed below:
CVE-2018-0870 - Internet Explorer Me
http://www.securityfocus.com/bid/103650http://www.securitytracker.com/id/1040661https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0956http://www.securityfocus.com/bid/103650http://www.securitytracker.com/id/1040661https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0956
2018-04-12
Published