CVE-2021-20046

EPSS 1.13%
Published 10.01.2022 14:10:16
Last modified 21.11.2024 05:45:50
Source PSIRT@sonicwall.com
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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 products Warnungen 0 Metrics 3 CWE 2 References 4

Data is provided by the National Vulnerability Database (NVD)

Sonicwall ≫ Sonicos Version <= 7.0.1-r146

   Sonicwall ≫ Nsa 2650 Version-
   Sonicwall ≫ Nsa 2700 Version-
   Sonicwall ≫ Nsa 3650 Version-
   Sonicwall ≫ Nsa 3700 Version-
   Sonicwall ≫ Nsa 4650 Version-
   Sonicwall ≫ Nsa 4700 Version-
   Sonicwall ≫ Nsa 5650 Version-
   Sonicwall ≫ Nsa 6650 Version-
   Sonicwall ≫ Nsa 6700 Version-
   Sonicwall ≫ Nsa 9250 Version-
   Sonicwall ≫ Nsa 9450 Version-
   Sonicwall ≫ Nsa 9650 Version-
   Sonicwall ≫ Tz270 Version-
   Sonicwall ≫ Tz270w Version-
   Sonicwall ≫ Tz300 Version-
   Sonicwall ≫ Tz300p Version-
   Sonicwall ≫ Tz300w Version-
   Sonicwall ≫ Tz350 Version-
   Sonicwall ≫ Tz350w Version-
   Sonicwall ≫ Tz370 Version-
   Sonicwall ≫ Tz370w Version-
   Sonicwall ≫ Tz400 Version-
   Sonicwall ≫ Tz400w Version-
   Sonicwall ≫ Tz470 Version-
   Sonicwall ≫ Tz470w Version-
   Sonicwall ≫ Tz500 Version-
   Sonicwall ≫ Tz500w Version-
   Sonicwall ≫ Tz570 Version-
   Sonicwall ≫ Tz570p Version-
   Sonicwall ≫ Tz570w Version-
   Sonicwall ≫ Tz600 Version-
   Sonicwall ≫ Tz600p Version-
   Sonicwall ≫ Tz670 Version-

Sonicwall ≫ Sonicos Version <= 7.0.1-5023-1349

   Sonicwall ≫ Nsv 10 Version-
   Sonicwall ≫ Nsv 100 Version-
   Sonicwall ≫ Nsv 1600 Version-
   Sonicwall ≫ Nsv 200 Version-
   Sonicwall ≫ Nsv 25 Version-
   Sonicwall ≫ Nsv 270 Version-
   Sonicwall ≫ Nsv 300 Version-
   Sonicwall ≫ Nsv 400 Version-
   Sonicwall ≫ Nsv 470 Version-
   Sonicwall ≫ Nsv 50 Version-
   Sonicwall ≫ Nsv 800 Version-
   Sonicwall ≫ Nsv 870 Version-

Sonicwall ≫ Sonicos Version <= 7.0.1-5018-r1715

   Sonicwall ≫ Nssp 12400 Version-
   Sonicwall ≫ Nssp 12800 Version-
   Sonicwall ≫ Nssp 13700 Version-
   Sonicwall ≫ Nssp 15700 Version-

Sonicwall ≫ Sonicos Version <= 6.5.4.8-89n

   Sonicwall ≫ Nsa 2650 Version-
   Sonicwall ≫ Nsa 2700 Version-
   Sonicwall ≫ Nsa 3650 Version-
   Sonicwall ≫ Nsa 3700 Version-
   Sonicwall ≫ Nsa 4650 Version-
   Sonicwall ≫ Nsa 4700 Version-
   Sonicwall ≫ Nsa 5650 Version-
   Sonicwall ≫ Nsa 6650 Version-
   Sonicwall ≫ Nsa 6700 Version-
   Sonicwall ≫ Nsa 9250 Version-
   Sonicwall ≫ Nsa 9450 Version-
   Sonicwall ≫ Nsa 9650 Version-
   Sonicwall ≫ Soho 250w Version-
   Sonicwall ≫ Supermassive 9200 Version-
   Sonicwall ≫ Supermassive 9400 Version-
   Sonicwall ≫ Supermassive 9600 Version-
   Sonicwall ≫ Supermassive 9800 Version-
   Sonicwall ≫ Tz270 Version-
   Sonicwall ≫ Tz270w Version-
   Sonicwall ≫ Tz300 Version-
   Sonicwall ≫ Tz300p Version-
   Sonicwall ≫ Tz300w Version-
   Sonicwall ≫ Tz350 Version-
   Sonicwall ≫ Tz350w Version-
   Sonicwall ≫ Tz370 Version-
   Sonicwall ≫ Tz370w Version-
   Sonicwall ≫ Tz400 Version-
   Sonicwall ≫ Tz400w Version-
   Sonicwall ≫ Tz470 Version-
   Sonicwall ≫ Tz470w Version-
   Sonicwall ≫ Tz500 Version-
   Sonicwall ≫ Tz500w Version-
   Sonicwall ≫ Tz570 Version-
   Sonicwall ≫ Tz570p Version-
   Sonicwall ≫ Tz570w Version-
   Sonicwall ≫ Tz600 Version-
   Sonicwall ≫ Tz600p Version-
   Sonicwall ≫ Tz670 Version-

Sonicwall ≫ Sonicos Version <= 6.5.1.13-1n

   Sonicwall ≫ Nssp 12400 Version-
   Sonicwall ≫ Nssp 12800 Version-
   Sonicwall ≫ Supermassive 9800 Version-

Sonicwall ≫ Sonicos Version <= 6.0.5.3-94o

   Sonicwall ≫ Supermassive E10200 Version-
   Sonicwall ≫ Supermassive E10400 Version-
   Sonicwall ≫ Supermassive E10800 Version-

Sonicwall ≫ Sonicos Version >= 5.0.0.0 <= 5.9.1.13

   Sonicwall ≫ Nsa 2650 Version-
   Sonicwall ≫ Nsa 2700 Version-
   Sonicwall ≫ Nsa 3650 Version-
   Sonicwall ≫ Nsa 3700 Version-
   Sonicwall ≫ Nsa 4650 Version-
   Sonicwall ≫ Nsa 4700 Version-
   Sonicwall ≫ Nsa 5650 Version-
   Sonicwall ≫ Nsa 6650 Version-
   Sonicwall ≫ Nsa 6700 Version-
   Sonicwall ≫ Nsa 9250 Version-
   Sonicwall ≫ Nsa 9450 Version-
   Sonicwall ≫ Nsa 9650 Version-
   Sonicwall ≫ Soho 250 Version-
   Sonicwall ≫ Soho 250w Version-
   Sonicwall ≫ Tz270 Version-
   Sonicwall ≫ Tz270w Version-
   Sonicwall ≫ Tz300 Version-
   Sonicwall ≫ Tz300p Version-
   Sonicwall ≫ Tz300w Version-
   Sonicwall ≫ Tz350 Version-
   Sonicwall ≫ Tz350w Version-
   Sonicwall ≫ Tz370 Version-
   Sonicwall ≫ Tz370w Version-
   Sonicwall ≫ Tz400 Version-
   Sonicwall ≫ Tz400w Version-
   Sonicwall ≫ Tz470 Version-
   Sonicwall ≫ Tz470w Version-
   Sonicwall ≫ Tz500 Version-
   Sonicwall ≫ Tz500w Version-

Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.

EPSS Metriken
Type	Source	Score	Percentile
EPSS	FIRST.org	1.13%	0.777

CVSS Metriken
Source	Base Score	Exploit Score	Impact Score	Vector string
nvd@nist.gov	8.8	2.8	5.9	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
nvd@nist.gov	6.5	8	6.4	AV:N/AC:L/Au:S/C:P/I:P/A:P

CWE-121 Stack-based Buffer Overflow

A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).

CWE-787 Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.

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

Vendor Advisory

https://nvd.nist.gov/vuln/detail/CVE-2021-20046

CVE Source (NVD)

https://cveawg.mitre.org/api/cve/CVE-2021-20046

CVE Source (JSON)

https://euvd.enisa.europa.eu/vulnerability/CVE-2021-20046

EUVD