Vulnerability identifier: #VU25324

Vulnerability risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-5824

CWE-ID: CWE-20

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Symantec Endpoint Protection
Client/Desktop applications / Antivirus software/Personal firewalls
Symantec Endpoint Protection Small Business Edition
Client/Desktop applications / Antivirus software/Personal firewalls

Vendor: Broadcom

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input within the "AvHostPlugin.dll" module. A local user can cause a denial of service condition on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Symantec Endpoint Protection: 14.2 RU1 - 14.2 RU2

Symantec Endpoint Protection Small Business Edition: 14.0.1904.0000 - 14.2.5323.2000

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External links
http://support.symantec.com/us/en/article.SYMSA1505.html
http://www.zerodayinitiative.com/advisories/ZDI-20-221/

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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.