Risk | Medium |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2021-20024 |
CWE-ID | CWE-125 |
Exploitation vector | Local network |
Public exploit | N/A |
Vulnerable software Subscribe |
SonicWall Switch Hardware solutions / Routers & switches, VoIP, GSM, etc |
Vendor |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
EUVDB-ID: #VU54623
Risk: Medium
CVSSv3.1: 6.2 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-20024
CWE-ID:
CWE-125 - Out-of-bounds read
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to gain access to potentially sensitive information or perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary condition when handling LLDP Protocol. A remote attacker on the local network can send specially crafted traffic to the device, trigger an out-of-bounds read error and read contents of memory on the system.
MitigationInstall updates from vendor's website.
The following models are affected:
SWS14-48FPOE, SWS14-48, SWS14-24FPOE, SWS14-24, SWS12-10FPOE, SWS12-8POE, SWS12-8
Vulnerable software versionsSonicWall Switch: before 1.1.0.0-11s
External linkshttp://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0011
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.