Vulnerability identifier: #VU26132

Vulnerability risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-8871

CWE-ID: CWE-787

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Parallels Desktop
Operating systems & Components / Operating system package or component

Vendor: Parallels

Description

The vulnerability allows a local user to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted input within the VGA virtual device. A local user can trigger out-of-bounds write, execute arbitrary code on the target system and gain elevated privileges.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Parallels Desktop: All versions

---

External links
http://www.zerodayinitiative.com/advisories/ZDI-20-292/

---

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.