Buffer overflow in SonicOS - CVE-2020-5137
Published: October 12, 2020 / Updated: October 16, 2020
Vulnerability identifier: #VU47686
CSH Severity: High
CVSS v4: 8.7 [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]
CVE-ID: CVE-2020-5137
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform DoS attack.
The vulnerability exists due to a boundary error when processing requests within the SSLVPN service. A remote non-authenticated attacker can send specially crafted request to the system and crash it.
Affected software
SonicOS
How to mitigate CVE-2020-5137
Install updates from vendor's website.
SonicOS - addressed in versions 5.9.2.7-5n, 5.9.2.13-7n, 6.0.5.3-94o, 6.5.1.12-1n, 6.5.4.v-21s-987, 6.5.4.7-83n, 7 7.0.0.0-2