#VU47687 Heap-based buffer overflow in SonicOS - CVE-2020-5138

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Main Vulnerability Database Vulnerabilities #VU47687

#VU47687 Heap-based buffer overflow in SonicOS - CVE-2020-5138

Published: October 12, 2020 / Updated: October 16, 2020


Vulnerability identifier: #VU47687
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2020-5138
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
SonicOS
Software vendor:
SonicWall

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error within the SSLVPN service. A remote non-authenticated attacker can send specially crafted request to the device and crash it.


Remediation

Install updates from vendor's website.

External links