Multiple vulnerabilities in Microsoft Win32k
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 6 |
| CVE-ID | CVE-2020-1207 CVE-2020-1247 CVE-2020-1310 CVE-2020-1251 CVE-2020-1253 CVE-2020-1290 |
| CWE-ID | CWE-416 CWE-119 CWE-125 |
| Exploitation vector | Local |
| Public exploit |
Public exploit code for vulnerability #2 is available. Public exploit code for vulnerability #3 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 6 vulnerabilities.
Updated: 10.06.2020
Updated description and references sections for vulnerability #1.
1) Use-after-free
EUVDB-ID: #VU28814
Risk: Low
CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-1207
CWE-ID:
CWE-416 - Use After Free
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error in Microsoft Windows win32kfull PDEVOBJ when processing palette objects. A local user can run a specially crafted application and execute arbitrary code with SYSTEM privileges.
Install update from vendor's website.
Vulnerable software versionsWindows: 7 - 10 1909
Windows Server: 2008 - 2019 1909
External linkshttp://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1207
http://www.zerodayinitiative.com/advisories/ZDI-20-692/
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
2) Buffer overflow
EUVDB-ID: #VU28815
Risk: Low
CVSSv3.1: 6.3 [CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]
CVE-ID: CVE-2020-1247
CWE-ID:
CWE-119 - Memory corruption
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 Windows kernel-mode driver. 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
External linkshttp://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1247
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.
3) Buffer overflow
EUVDB-ID: #VU28816
Risk: Low
CVSSv3.1: 5.8 [CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]
CVE-ID: CVE-2020-1310
CWE-ID:
CWE-119 - Memory corruption
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 Windows kernel-mode driver. 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: 8.1 - 10 1909
Windows Server: 2012 - 2019 1909
External linkshttp://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1310
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.
4) Buffer overflow
EUVDB-ID: #VU28817
Risk: Low
CVSSv3.1: 5.6 [CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-1251
CWE-ID:
CWE-119 - Memory corruption
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 Windows kernel-mode driver. 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
External linkshttp://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1251
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
5) Buffer overflow
EUVDB-ID: #VU28818
Risk: Low
CVSSv3.1: 5.6 [CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-1253
CWE-ID:
CWE-119 - Memory corruption
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 Windows kernel-mode driver. 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
External linkshttp://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1253
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
6) Out-of-bounds read
EUVDB-ID: #VU28819
Risk: Low
CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-1290
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 1709 - 10 1909
Windows Server: 2019 - 2019 1909
External linkshttp://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1290
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
