CVE-2021-20024

Multiple Out-of-Bound read vulnerability in SonicWall Switch when handling LLDP Protocol allows an attacker to cause a system instability or potentially read sensitive information from the memory locations.

CVSS v3.0 8.1 HIGH
CVSS v2.0 6.8 MEDIUM

8.1^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.2

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

6.8^/10

CVSS v2.0 : MEDIUM

Vector : AV:A/AC:L/Au:N/C:P/I:N/A:C

Exploitability : 6.5 / Impact : 7.8

Access Vector ADJACENT_NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact COMPLETE

References

Link	Resource
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0011	Vendor Advisory

Advertisement

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:sonicwall:switch:*:*:*:*:*:*:*:*

OR	cpe:2.3:h:sonicwall:sws12-10fpoe:-:::::::*
	cpe:2.3:h:sonicwall:sws12-8:-:::::::*
	cpe:2.3:h:sonicwall:sws12-8poe:-:::::::*
	cpe:2.3:h:sonicwall:sws14-24:-:::::::*
	cpe:2.3:h:sonicwall:sws14-24fpoe:-:::::::*
	cpe:2.3:h:sonicwall:sws14-48:-:::::::*
	cpe:2.3:h:sonicwall:sws14-48fpoe:-:::::::*

Information

Published : 2021-07-09 15:15

Updated : 2021-07-16 09:59

NVD link : CVE-2021-20024

Mitre link : CVE-2021-20024

JSON object : View

CWE

CWE-125

Out-of-bounds Read

Advertisement

Products Affected

sonicwall

sws12-10fpoe
sws14-24
sws14-24fpoe
sws12-8
sws12-8poe
sws14-48
switch
sws14-48fpoe

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0011", "name": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0011", "tags": ["Vendor Advisory"], "refsource": "CONFIRM"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "Multiple Out-of-Bound read vulnerability in SonicWall Switch when handling LLDP Protocol allows an attacker to cause a system instability or potentially read sensitive information from the memory locations."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-125"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2021-20024", "ASSIGNER": "PSIRT@sonicwall.com"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 6.8, "accessVector": "ADJACENT_NETWORK", "vectorString": "AV:A/AC:L/Au:N/C:P/I:N/A:C", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "COMPLETE", "confidentialityImpact": "PARTIAL"}, "severity": "MEDIUM", "acInsufInfo": false, "impactScore": 7.8, "obtainAllPrivilege": false, "exploitabilityScore": 6.5, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}, "baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.1, "attackVector": "ADJACENT_NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.2, "exploitabilityScore": 2.8}}, "publishedDate": "2021-07-09T22:15Z", "configurations": {"nodes": [{"children": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:sonicwall:switch:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndIncluding": "1.0.0.5-16"}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:h:sonicwall:sws12-10fpoe:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": false}, {"cpe23Uri": "cpe:2.3:h:sonicwall:sws12-8:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": false}, {"cpe23Uri": "cpe:2.3:h:sonicwall:sws12-8poe:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": false}, {"cpe23Uri": "cpe:2.3:h:sonicwall:sws14-24:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": false}, {"cpe23Uri": "cpe:2.3:h:sonicwall:sws14-24fpoe:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": false}, {"cpe23Uri": "cpe:2.3:h:sonicwall:sws14-48:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": false}, {"cpe23Uri": "cpe:2.3:h:sonicwall:sws14-48fpoe:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": false}]}], "operator": "AND", "cpe_match": []}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2021-07-16T16:59Z"}