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Multiple Vulnerabilities in SonicWall Secure Mobile Access Products

Issued: 
Monday, 13 December, 2021
Last Revision: 
Monday, 13 December, 2021
Vendor: 
Product: 
Severity Level: 
Summary: 

SonicWall has addressed eight vulnerabilities rated critical and medium severity (CVSS 5.3-9.8) in SMA 100 series appliances, which include the SMA 200, 210, 400, 410 and 500v models. Majority of these vulnerabilities affect WAF enabled appliances as well.

 

Out of eight reported vulnerabilities, CVE-2021-20038, CVE-2021-20043 and CVE-2021-20045 are most severe in nature.

 

These vulnerabilities could allow unauthenticated remote attacker to cause Heap-based and Stackbased Buffer Overflow and would result in code execution as the “nobody” user in the SMA100 appliance.

 

CVE/Vulnerability

                         Description 

CVSS3.0 Score

CVE-2021-20038

Unauthenticated stack-based buffer overflow

9.8

CVE-2021-20043

Heap-based buffer overflow

8.8

CVE-2021-20045

Multiple unauthenticated heap- and stack-based buffer overflows

9.4

 
                                                                           Table 1: Vulnerability details

 

 

CVE/Vulnerability 

          Affected Product(s)

      Affected Version(s)

CVE-2021-20038

                

SMA 100 Series

(SMA 200, 210, 400, 410, 500v)

10.2.0.8-37sv, 10.2.1.1-19sv,

10.2.1.2-24sv

CVE-2021-20043

 

SMA 100 Series

(SMA 200, 210, 400, 410, 500v)

10.2.0.8-37sv, 10.2.1.1-19sv

CVE-2021-20045

SMA 100 Series

(SMA 200, 210, 400, 410, 500v)

10.2.0.8-37sv, 10.2.1.1-19sv

 

                                                                           Table 2: Vulnerable versions
 
 
Recommendation: 

Organizations are recommended to identify the affected products and apply updates as soon as possible.