SB2022071228 - Multiple vulnerabilities in Microsoft Windows Graphics Component

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Main Vulnerability Database SB2022071228

SB2022071228 - Multiple vulnerabilities in Microsoft Windows Graphics Component

Published: July 12, 2022 Updated: July 14, 2022

Security Bulletin ID SB2022071228
CSH Severity
High
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 50% Low 50%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 vulnerabilities.


1) Use-after-free (CVE-ID: CVE-2022-22034)

CWE-ID: CWE-416 - Use After Free

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 user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error in multiple methods within the win32kfull driver in Microsoft Windows. A local user can run a specially crafted program to trigger a use-after-free error and execute arbitrary code with SYSTEM privileges.

List of vulnerable methods:

  • UMPDDrvStretchBltROP
  • UMPDDrvAlphaBlend
  • UMPDDrvCopyBits
  • UMPDDrvStretchBlt
  • UMPDDrvPlgBlt
  • UMPDDrvTransparentBlt
  • UMPDDrvBitBlt
  • UMPDDrvStrokePath
  • UMPDDrvGradientFill
  • UMPDDrvTextOut

2) Input validation error (CVE-ID: CVE-2022-30221)

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:U/U:Amber


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

The vulnerability exists due to insufficient validation of user-supplied input in Windows Graphics Component. A remote attacker can trick a victim to connect to a malicious RDP server and execute arbitrary code on the target system.


Remediation

Install update from vendor's website.

References