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ID

VAR-202108-1037


CVE

CVE-2021-28838


TITLE

plural  D-Link DAP  In the product  NULL  Pointer dereference vulnerability

Trust: 0.8

sources: JVNDB: JVNDB-2021-010921

DESCRIPTION

Null pointer dereference vulnerability in D-Link DAP-2310 2,10RC039, DAP-2330 1.10RC036 BETA, DAP-2360 2.10RC055, DAP-2553 3.10rc039 BETA, DAP-2660 1.15rc131b, DAP-2690 3.20RC115 BETA, DAP-2695 1.20RC093, DAP-3320 1.05RC027 BETA and DAP-3662 1.05rc069 in the sbin/httpd binary. The crash happens at the `atoi' operation when a specific network package are sent to the httpd binary. plural D-Link DAP The product has NULL There is a vulnerability in pointer dereference.Service operation interruption (DoS) It may be put into a state. D-Link DAP-2310 is a single-band wireless network access point, suitable for small businesses or schools that require fast and reliable wireless networks. D-Link DAP-2330 is a wireless N300 single frequency PoE access point

Trust: 2.25

sources: NVD: CVE-2021-28838 // JVNDB: JVNDB-2021-010921 // CNVD: CNVD-2021-94840 // VULMON: CVE-2021-28838

IOT TAXONOMY

category:['Network device']sub_category: -

Trust: 0.6

sources: CNVD: CNVD-2021-94840

AFFECTED PRODUCTS

vendor:dlinkmodel:dap-2553scope:eqversion:3.10rc039

Trust: 1.0

vendor:dlinkmodel:dap-2360scope:lteversion:2.10rc055

Trust: 1.0

vendor:dlinkmodel:dap-2695scope:lteversion:1.20rc093

Trust: 1.0

vendor:dlinkmodel:dap-2690scope:eqversion:3.20rc115

Trust: 1.0

vendor:dlinkmodel:dap-3662scope:eqversion:1.05rc069

Trust: 1.0

vendor:dlinkmodel:dap-3320scope:ltversion:1.05rc027

Trust: 1.0

vendor:dlinkmodel:dap-2660scope:lteversion:1.15rc131b

Trust: 1.0

vendor:dlinkmodel:dap-3320scope:eqversion:1.05rc027

Trust: 1.0

vendor:dlinkmodel:dap-2330scope:ltversion:1.10rc036

Trust: 1.0

vendor:dlinkmodel:dap-2553scope:ltversion:3.10rc039

Trust: 1.0

vendor:dlinkmodel:dap-2690scope:ltversion:3.20rc115

Trust: 1.0

vendor:dlinkmodel:dap-2310scope:lteversion:2.10rc039

Trust: 1.0

vendor:dlinkmodel:dap-3662scope:ltversion:1.05rc069

Trust: 1.0

vendor:dlinkmodel:dap-2330scope:eqversion:1.10rc036

Trust: 1.0

vendor:d linkmodel:dap-2330scope: - version: -

Trust: 0.8

vendor:d linkmodel:dap-2360scope: - version: -

Trust: 0.8

vendor:d linkmodel:dap-3320scope: - version: -

Trust: 0.8

vendor:d linkmodel:dap-2690scope: - version: -

Trust: 0.8

vendor:d linkmodel:dap-3662scope: - version: -

Trust: 0.8

vendor:d linkmodel:dap-2695scope: - version: -

Trust: 0.8

vendor:d linkmodel:dap-2310scope: - version: -

Trust: 0.8

vendor:d linkmodel:dap-2553scope: - version: -

Trust: 0.8

vendor:d linkmodel:dap-2660scope: - version: -

Trust: 0.8

vendor:d linkmodel:dap-2310 2,10rc039scope: - version: -

Trust: 0.6

vendor:d linkmodel:dap-2330 1.10rc036 betascope: - version: -

Trust: 0.6

vendor:d linkmodel:dap-2360 2.10rc055scope: - version: -

Trust: 0.6

vendor:d linkmodel:dap-2553 3.10rc039 betascope: - version: -

Trust: 0.6

vendor:d linkmodel:dap-2660scope:eqversion:3.163.16

Trust: 0.6

vendor:d linkmodel:tarc15-15rcscope: - version: -

Trust: 0.6

vendor:d linkmodel:dap-2660 1.16brc15rcscope: - version: -

Trust: 0.6

sources: CNVD: CNVD-2021-94840 // JVNDB: JVNDB-2021-010921 // NVD: CVE-2021-28838

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2021-28838
value: HIGH

Trust: 1.0

NVD: CVE-2021-28838
value: HIGH

Trust: 0.8

CNVD: CNVD-2021-94840
value: MEDIUM

Trust: 0.6

CNNVD: CNNVD-202108-997
value: HIGH

Trust: 0.6

VULMON: CVE-2021-28838
value: MEDIUM

Trust: 0.1

nvd@nist.gov: CVE-2021-28838
severity: MEDIUM
baseScore: 5.0
vectorString: AV:N/AC:L/AU:N/C:N/I:N/A:P
accessVector: NETWORK
accessComplexity: LOW
authentication: NONE
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: PARTIAL
exploitabilityScore: 10.0
impactScore: 2.9
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.9

CNVD: CNVD-2021-94840
severity: MEDIUM
baseScore: 5.0
vectorString: AV:N/AC:L/AU:N/C:N/I:N/A:P
accessVector: NETWORK
accessComplexity: LOW
authentication: NONE
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: PARTIAL
exploitabilityScore: 10.0
impactScore: 2.9
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.6

nvd@nist.gov: CVE-2021-28838
baseSeverity: HIGH
baseScore: 7.5
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: HIGH
exploitabilityScore: 3.9
impactScore: 3.6
version: 3.1

Trust: 1.0

NVD: CVE-2021-28838
baseSeverity: HIGH
baseScore: 7.5
vectorString: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: HIGH
exploitabilityScore: NONE
impactScore: NONE
version: 3.0

Trust: 0.8

sources: CNVD: CNVD-2021-94840 // VULMON: CVE-2021-28838 // JVNDB: JVNDB-2021-010921 // CNNVD: CNNVD-202108-997 // NVD: CVE-2021-28838

PROBLEMTYPE DATA

problemtype:CWE-476

Trust: 1.0

problemtype:NULL Pointer dereference (CWE-476) [NVD evaluation ]

Trust: 0.8

sources: JVNDB: JVNDB-2021-010921 // NVD: CVE-2021-28838

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202108-997

TYPE

code problem

Trust: 0.6

sources: CNNVD: CNNVD-202108-997

PATCH

title:Security Bulletinurl:https://www.dlink.com/en/security-bulletin

Trust: 0.8

sources: JVNDB: JVNDB-2021-010921

EXTERNAL IDS

db:NVDid:CVE-2021-28838

Trust: 3.9

db:JVNDBid:JVNDB-2021-010921

Trust: 0.8

db:CNVDid:CNVD-2021-94840

Trust: 0.6

db:CNNVDid:CNNVD-202108-997

Trust: 0.6

db:VULMONid:CVE-2021-28838

Trust: 0.1

sources: CNVD: CNVD-2021-94840 // VULMON: CVE-2021-28838 // JVNDB: JVNDB-2021-010921 // CNNVD: CNNVD-202108-997 // NVD: CVE-2021-28838

REFERENCES

url:https://github.com/zyw-200/equafl/blob/main/dlink-email-cve.pdf

Trust: 2.5

url:https://nvd.nist.gov/vuln/detail/cve-2021-28838

Trust: 2.0

url:https://www.dlink.com/en/security-bulletin/

Trust: 1.7

url:https://github.com/zyw-200/equafl/blob/main/dlink-email-cve2.pdf

Trust: 1.7

url:https://cwe.mitre.org/data/definitions/476.html

Trust: 0.1

url:https://nvd.nist.gov

Trust: 0.1

sources: CNVD: CNVD-2021-94840 // VULMON: CVE-2021-28838 // JVNDB: JVNDB-2021-010921 // CNNVD: CNNVD-202108-997 // NVD: CVE-2021-28838

SOURCES

db:CNVDid:CNVD-2021-94840
db:VULMONid:CVE-2021-28838
db:JVNDBid:JVNDB-2021-010921
db:CNNVDid:CNNVD-202108-997
db:NVDid:CVE-2021-28838

LAST UPDATE DATE

2024-08-14T14:50:12.336000+00:00


SOURCES UPDATE DATE

db:CNVDid:CNVD-2021-94840date:2021-12-14T00:00:00
db:VULMONid:CVE-2021-28838date:2021-08-17T00:00:00
db:JVNDBid:JVNDB-2021-010921date:2022-07-12T03:12:00
db:CNNVDid:CNNVD-202108-997date:2021-08-26T00:00:00
db:NVDid:CVE-2021-28838date:2021-08-17T14:57:22.040

SOURCES RELEASE DATE

db:CNVDid:CNVD-2021-94840date:2021-12-07T00:00:00
db:VULMONid:CVE-2021-28838date:2021-08-10T00:00:00
db:JVNDBid:JVNDB-2021-010921date:2022-07-12T00:00:00
db:CNNVDid:CNNVD-202108-997date:2021-08-10T00:00:00
db:NVDid:CVE-2021-28838date:2021-08-10T18:15:07.137