CVE-2021-20046

8.8HIGH

Key Information

Vendor
Sonicwall
Status
Sonicos
Vendor
CVE Published:
10 January 2022

Summary

A Stack-based buffer overflow in the SonicOS HTTP Content-Length response header allows a remote authenticated attacker to cause Denial of Service (DoS) and potentially results in code execution in the firewall. This vulnerability affected SonicOS Gen 5, Gen 6 and Gen 7 firmware versions.

Affected Version(s)

SonicOS = 7.0.1-R146 and earlier

SonicOS = 7.0.1-5023-1349 and earlier

SonicOS = 7.0.1-5018-R1715 and earlier

Refferences

https://psirt.global.sonicwall.com/vuln-detail/SNWLID-202...
x_refsource_CONFIRM

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Collectors

NVD DatabaseMitre Database
.