9.8

CVE-2020-5135

Warning

A buffer overflow vulnerability in SonicOS allows a remote attacker to cause Denial of Service (DoS) and potentially execute arbitrary code by sending a malicious request to the firewall. This vulnerability affected SonicOS Gen 6 version 6.5.4.7, 6.5.1.12, 6.0.5.3, SonicOSv 6.5.4.v and Gen 7 version 7.0.0.0.

Data is provided by the National Vulnerability Database (NVD)
Sonicwall ≫ Sonicos Version <= 6.0.5.3
Sonicwall ≫ Sonicos Version >= 6.5.0.0 <= 6.5.1.11
Sonicwall ≫ Sonicos Version >= 6.5.4.0 <= 6.5.4.7
Sonicwall ≫ Sonicos Version7.0.0.0
Sonicwall ≫ Sonicosv Version <= 6.5.4.4

15.03.2022: CISA Known Exploited Vulnerabilities (KEV) Catalog

SonicWall SonicOS Buffer Overflow Vulnerability

Vulnerability

A buffer overflow vulnerability in SonicOS allows a remote attacker to cause Denial of Service (DoS) and potentially execute arbitrary code by sending a malicious request to the firewall.

Description

Apply updates per vendor instructions.

Required actions
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 27.33% 0.963
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string
nvd@nist.gov 9.8 3.9 5.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvd@nist.gov 7.5 10 6.4
AV:N/AC:L/Au:N/C:P/I:P/A:P
134c704f-9b21-4f2e-91b3-4a467353bcc0 9.8 3.9 5.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.