1) Buffer overflow

Severity: High

CVSSv3: 7.7 [CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2019-0903

CWE-ID: CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error within the Windows Graphics Device Interface (GDI). A remote attacker can create a specially crafted webpage, trick the victim into opening it, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows: 7, 8.1, 10, 10 1607, 10 1703, 10 1709, 10 1803, 10 1809, 10 1903, RT 8.1

Windows Server: 1803, 1903, 2008, 2008 R2, 2012, 2012 R2, 2016, 2019

CPE

• cpe:/a:microsoft:windows:8.1:
• cpe:/a:microsoft:windows:7:
• cpe:/a:microsoft:windows:10:
• cpe:/a:microsoft:windows:RT 8.1:
• cpe:/a:microsoft:windows:10 1607:
• cpe:/a:microsoft:windows:10 1703:
• cpe:/a:microsoft:windows:10 1709:
• cpe:/a:microsoft:windows:10 1803:
• cpe:/a:microsoft:windows:10 1809:
• cpe:/a:microsoft:windows:10 1903:
• cpe:/a:microsoft:windows_server:2012:
• cpe:/a:microsoft:windows_server:2012 R2:
• cpe:/a:microsoft:windows_server:2008:
• cpe:/a:microsoft:windows_server:2008 R2:
• cpe:/a:microsoft:windows_server:2016:
• cpe:/a:microsoft:windows_server:2019:
• cpe:/a:microsoft:windows_server:1803:
• cpe:/a:microsoft:windows_server:1903:

External links

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0903

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.