CVEvulnerability

CVE-2021-20046

8.8 HIGH Published 2022-01-10 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2022-01-10
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
8.8 HIGH — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
6.5 MEDIUM — AV:N/AC:L/Au:S/C:P/I:P/A:P
Weaknesses
CWE-121, CWE-787

Description

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 configurations

• sonicwall sonicos (<= 7.0.1-r146) • sonicwall sonicos (<= 7.0.1-5023-1349) • sonicwall sonicos (<= 7.0.1-5018-r1715) • sonicwall sonicos (<= 6.5.4.8-89n) • sonicwall sonicos (<= 6.5.1.13-1n) • sonicwall sonicos (<= 6.0.5.3-94o) • sonicwall sonicos (>= 5.0.0.0 <= 5.9.1.13)

Related

Weakness · CWE (2)

  • CWE-121 Stack-based Buffer Overflow weakness
  • CWE-787 Out-of-bounds Write weakness

References