SB2017062604 - Two vulnerabilities in Microsoft Windows Graphics Component

Description

This security bulletin contains information about 2 vulnerabilities.

1) Privilege escalation (CVE-ID: CVE-2017-8576)

CWE-ID: CWE-119 - Memory corruption

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local attacker to gain elevated privileges on the target system.

The weakness exists due to improper initialization of content in memory by the Windows Graphics component. A local attacker can run a specially crafted application and execute arbitrary code with system privileges.

Successful exploitation of the vulnerability may result in system compromise.

2) Information disclosure (CVE-ID: CVE-2017-8575)

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local attacker to obtain potentially sensitive information.

The weakness exists due to improper handling of objects in memory by the Windows Graphics component. A local attacker can run a specially crafted application and read arbitrary files on the system.

Successful exploitation of the vulnerability may result in information disclosure.

Remediation

Install update from vendor's website.

References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8576
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8575