SB2020071459 - Multiple vulnerabilities in Microsoft Graphics

Description

This security bulletin contains information about 2 vulnerabilities.

1) Input validation error (CVE-ID: CVE-2020-1408)

CWE-ID: CWE-20 - Improper input validation

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

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

The vulnerability exists due to insufficient validation of user-supplied input within the Windows font library when processing specially crafted embedded fonts. A remote attacker can trick the victim to open a specially crafted document or visit a website and execute arbitrary code on the target system with privileges of the current user.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

2) Out-of-bounds read (CVE-ID: CVE-2020-1351)

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

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

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition within the Windows Graphics component. A local user can use a specially crafted application to trigger out-of-bounds read error and read contents of memory on the system.

Remediation

Install update from vendor's website.

References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1408
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1351