Stack-based buffer overflow in SonicOS - CVE-2023-39277

Vulnerability identifier: #VU82056

CSH Severity: Medium

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

CVE-ID: CVE-2023-39277

CWE-ID: CWE-121

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vendor: SonicWall

Affected software:
SonicOS

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

The vulnerability exists due to a boundary error within the sonicflow.csv and appflowsessions.csv endpoints. A remote authenticated user can send a specially crafted HTTP request to the affected URL, trigger a stack-based buffer overflow and perform a denial of service (DoS) attack.

Install updates from vendor's website.

• https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2023-0012