Remote DoS in HTTP.sys driver in Microsoft Windows
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2018-0956 |
| CWE-ID | CWE-20 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Windows Operating systems & Components / Operating system Windows Server Operating systems & Components / Operating system Microsoft IIS Server applications / Web servers |
| Vendor | Microsoft |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) Improper input validation
EUVDB-ID: #VU11728
Risk: Medium
CVSSv3.1: 7.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2018-0956
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to an error within the the HTTP 2.0 protocol stack (HTTP.sys) when processing HTTP 2.0 requests. A remote attacker can send a specially crafted HTTP 2.0 request to the affected system and cause the system to crash.
Install updates from vendor's website.
Vulnerable software versionsWindows: 10
Windows Server: 2016
Microsoft IIS: 10.0
External linkshttp://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0956
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
