#VU28814 Use-after-free in Windows and Windows Server


Published: 2020-06-09 | Updated: 2020-06-10

Vulnerability identifier: #VU28814

Vulnerability 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

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Windows
Operating systems & Components / Operating system
Windows Server
Operating systems & Components / Operating system

Vendor: Microsoft

Description

The 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.


Mitigation
Install update from vendor's website.

Vulnerable software versions

Windows: 10 - 10 1909, 7, 8.1 - 8.1 RT

Windows Server: 2008 - 2019 1909


External links
http://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.


Latest bulletins with this vulnerability