Cloud Vulnerability DB
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Vulnerability DatabaseCVE-2020-0956
CVE-2020-0956:
vulnerability analysis and mitigation
Overview
A local privilege escalation vulnerability exists in Microsoft Windows, identified as CVE-2020-0956, which was discovered and disclosed on April 15, 2020. The vulnerability specifically affects the handling of palette objects within win32k.sys in Microsoft Windows operating system (ZDI Advisory).
Technical details
The vulnerability stems from a use-after-free condition in the Windows Palette Object within win32k.sys. The specific flaw exists due to the lack of validation when checking the existence of an object prior to performing operations on it. The vulnerability has been assigned a CVSS score of 8.8 (AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H), indicating high severity (ZDI Advisory).
Impact
When successfully exploited, this vulnerability allows an attacker to execute code in the context of SYSTEM, effectively gaining elevated privileges on the affected system. The high CVSS score reflects the significant potential impact on system security (ZDI Advisory).
Mitigation and workarounds
Microsoft has released a security update to address this vulnerability. Users are advised to apply the security update provided through the official Microsoft security advisory (ZDI Advisory).
Additional resources
Source: This report was generated using AI
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