CVE-2021-20046

2022-01-0703:00:11

CWE-121

sonicwall

www.cve.org

8.9 High

AI Score

Confidence

High

0.004 Low

EPSS

Percentile

72.2%

JSON

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.

CNA Affected

[
  {
    "product": "SonicOS",
    "vendor": "SonicWall",
    "versions": [
      {
        "status": "affected",
        "version": "7.0.1-R146 and earlier"
      },
      {
        "status": "affected",
        "version": "7.0.1-5023-1349 and earlier"
      },
      {
        "status": "affected",
        "version": "7.0.1-5018-R1715 and earlier"
      },
      {
        "status": "affected",
        "version": "6.5.4.8-89n and earlier"
      },
      {
        "status": "affected",
        "version": "6.5.1.13-1n and earlier"
      },
      {
        "status": "affected",
        "version": "6.0.5.3-94o and earlier"
      },
      {
        "status": "affected",
        "version": "6.5.4.v_21s-1288 and earlier"
      },
      {
        "status": "affected",
        "version": "5.9.1.13 and earlier"
      }
    ]
  }
]

References

psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0027