Multiple vulnerabilities in Microsoft Win32k
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 4 |
| CVE-ID | CVE-2020-0788 CVE-2020-0887 CVE-2020-0877 CVE-2020-0876 |
| CWE-ID | CWE-119 CWE-125 |
| Exploitation vector | Local |
| Public exploit | Public exploit code for vulnerability #2 is available. |
| Vulnerable software Subscribe |
Windows Operating systems & Components / Operating system Windows Server Operating systems & Components / Operating system |
| Vendor | Microsoft |
Security Bulletin
This security bulletin contains information about 4 vulnerabilities.
1) Buffer overflow
EUVDB-ID: #VU25908
Risk: Low
CVSSv3.1:
CVE-ID: CVE-2020-0788
CWE-ID:
CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error when processing objects in memory within the Win32k component. A local user can create a malicious application, launch it on the system and execute arbitrary code with SYSTEM privileges.
MitigationInstall update from vendor's website.
Vulnerable software versionsWindows: 7 - 10 1909
Windows Server: 2008 - 2019 1909
CPE2.3 External links
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0788
Q & A
Can this vulnerability be exploited remotely?
Is there known malware, which exploits this vulnerability?
2) Buffer overflow
EUVDB-ID: #VU25906
Risk: Low
CVSSv3.1:
CVE-ID: CVE-2020-0887
CWE-ID:
CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Exploit availability: Yes
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error when processing objects in memory within the Win32k component. A local user can create a malicious application, launch it on the system and execute arbitrary code with SYSTEM privileges.
MitigationInstall update from vendor's website.
Vulnerable software versionsWindows: 7 - 10 1909
Windows Server: 2008 - 2019 1909
CPE2.3 External links
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0887
Q & A
Can this vulnerability be exploited remotely?
Is there known malware, which exploits this vulnerability?
3) Buffer overflow
EUVDB-ID: #VU25904
Risk: Low
CVSSv3.1:
CVE-ID: CVE-2020-0877
CWE-ID:
CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error when processing objects in memory within the Win32k component. A local user can create a malicious application, launch it on the system and execute arbitrary code with SYSTEM privileges.
MitigationInstall update from vendor's website.
Vulnerable software versionsWindows: 7 - 10 1909
Windows Server: 2008 - 2019 1909
CPE2.3 External links
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0877
Q & A
Can this vulnerability be exploited remotely?
Is there known malware, which exploits this vulnerability?
4) Out-of-bounds read
EUVDB-ID: #VU25901
Risk: Low
CVSSv3.1:
CVE-ID: CVE-2020-0876
CWE-ID:
CWE-125 - Out-of-bounds Read
Exploit availability: No
DescriptionThe vulnerability allows a local user to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition within the win32k 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.
MitigationInstall update from vendor's website.
Vulnerable software versionsWindows: 10 1903 - 10 1909
Windows Server: 2019 1903 - 2019 1909
CPE2.3 External links
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0876
Q & A
Can this vulnerability be exploited remotely?
Is there known malware, which exploits this vulnerability?
