Information disclosure in Parallels Desktop



Risk Low
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2020-17393
CVE-2020-17390
CWE-ID CWE-20
CWE-125
Exploitation vector Local
Public exploit N/A
Vulnerable software
 Parallels Desktop
Operating systems & Components / Operating system package or component

Vendor Parallels

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Input validation error

EUVDB-ID: #VU45766

Risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2020-17393

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a local user to gain access to sensitive information.

The vulnerability exists due to insufficient validation of user-supplied input within the prl_hypervisor kext. A local user can pass specially crafted input to the application and gain access to sensitive information on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Parallels Desktop: 15.0.0 (46967) - 15.1.3

CPE2.3 External links

https://www.zerodayinitiative.com/advisories/ZDI-20-1011/
https://kb.parallels.com/en/125013


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) Out-of-bounds read

EUVDB-ID: #VU45763

Risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2020-17390

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition within the hypervisor kernel extension. A local user can run a specially crafted program to trigger out-of-bounds read condition and gain access to sensitive data in the memory.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Parallels Desktop: 15.0.0 (46967) - 15.1.3

CPE2.3 External links

https://www.zerodayinitiative.com/advisories/ZDI-20-1008/
https://kb.parallels.com/en/125013


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.



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