SB2018100930 - Multiple vulnerabilities in Microsoft Graphics Components

Description

This security bulletin contains information about 2 vulnerabilities.

1) Memory corruption (CVE-ID: CVE-2018-8432)

CWE-ID: CWE-119 - Memory corruption

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

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

The vulnerability exists due to boundary error when Microsoft Graphics Components handle objects in memory. A remote unauthenticated attacker can trick the victim into opening a specially crafted file, trigger memory corruption and execute arbitrary code with elevated privileges.

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

2) Information disclosure (CVE-ID: CVE-2018-8427)

CWE-ID: CWE-119 - Memory corruption

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

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

The vulnerability exists due to boundary error when Microsoft Graphics Components handle objects in memory. A remote attacker can trick the victim into opening a specially crafted file, trigger memory corruption and gain access to potentially sensitive information.

Remediation

Install update from vendor's website.

References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8432
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8427