Information disclosure in Microsoft Windows GDI

Published: 2018-09-15

Risk	Low
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2018-8422 CVE-2018-8424
CWE-ID	CWE-125
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	Windows Server Operating systems & Components / Operating system Windows Operating systems & Components / Operating system
Vendor	Microsoft

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Buffer over-read

EUVDB-ID: #VU14783

Risk: Low

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-8422

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition when processing untrusted data within the Windows GDI component. A remote attacker can create a specially specially crafted file, trick the victim into opening it, trigger out-of-bounds read error and obtain contents of memory on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Windows Server: 2008 R2

Windows: 7

External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8422

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.

2) Buffer over-read

EUVDB-ID: #VU14784