CVE-2021-28838 : Null pointer dereference vulnerability in D-Link DAP-2310 2,10RC039, DAP-2330 1.

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.

Published 2021-08-10 18:15:07

Updated 2021-08-17 14:57:22

Source MITRE

View at NVD, CVE.org

Vulnerability category: Memory Corruption

Products affected by CVE-2021-28838

Dlink » Dap-2310 Firmware
Versions up to, including, (<=) 2.10rc039
cpe:2.3:o:dlink:dap-2310_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Dlink » Dap-2310 » Version: N/A
Dlink » Dap-2330 Firmware
Versions before (<) 1.10rc036
cpe:2.3:o:dlink:dap-2330_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Dlink » Dap-2330 » Version: N/A
Dlink » Dap-2330 Firmware » Version: 1.10rc036 Update Beta
cpe:2.3:o:dlink:dap-2330_firmware:1.10rc036:beta:*:*:*:*:*:*
Matching versions
When used together with: Dlink » Dap-2330 » Version: N/A
Dlink » Dap-2360 Firmware
Versions up to, including, (<=) 2.10rc055
cpe:2.3:o:dlink:dap-2360_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Dlink » Dap-2360 » Version: N/A
Dlink » Dap-2553 Firmware
Versions before (<) 3.10rc039
cpe:2.3:o:dlink:dap-2553_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Dlink » Dap-2553 » Version: N/A
Dlink » Dap-2553 Firmware » Version: 3.10rc039 Update Beta
cpe:2.3:o:dlink:dap-2553_firmware:3.10rc039:beta:*:*:*:*:*:*
Matching versions
When used together with: Dlink » Dap-2553 » Version: N/A
Dlink » Dap-2660 Firmware
Versions up to, including, (<=) 1.15rc131b
cpe:2.3:o:dlink:dap-2660_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Dlink » Dap-2660 » Version: N/A
Dlink » Dap-2690 Firmware
Versions before (<) 3.20rc115
cpe:2.3:o:dlink:dap-2690_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Dlink » Dap-2690 » Version: N/A
Dlink » Dap-2690 Firmware » Version: 3.20rc115 Update Beta
cpe:2.3:o:dlink:dap-2690_firmware:3.20rc115:beta:*:*:*:*:*:*
Matching versions
When used together with: Dlink » Dap-2690 » Version: N/A
Dlink » Dap-2695 Firmware
Versions up to, including, (<=) 1.20rc093
cpe:2.3:o:dlink:dap-2695_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Dlink » Dap-2695 » Version: N/A
Dlink » Dap-3320 Firmware
Versions before (<) 1.05rc027
cpe:2.3:o:dlink:dap-3320_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Dlink » Dap-3320 » Version: N/A
Dlink » Dap-3320 Firmware » Version: 1.05rc027 Update Beta
cpe:2.3:o:dlink:dap-3320_firmware:1.05rc027:beta:*:*:*:*:*:*
Matching versions
When used together with: Dlink » Dap-3320 » Version: N/A
Dlink » Dap-3662 Firmware
Versions before (<) 1.05rc069
cpe:2.3:o:dlink:dap-3662_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Dlink » Dap-3662 » Version: N/A
Dlink » Dap-3662 Firmware » Version: 1.05rc069 Update Beta
cpe:2.3:o:dlink:dap-3662_firmware:1.05rc069:beta:*:*:*:*:*:*
Matching versions
When used together with: Dlink » Dap-3662 » Version: N/A

Exploit prediction scoring system (EPSS) score for CVE-2021-28838

EPSS FAQ

1.04%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 75 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-28838

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
5.0	MEDIUM	AV:N/AC:L/Au:N/C:N/I:N/A:P	10.0	2.9	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: None Integrity Impact: None Availability Impact: Partial
7.5	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	3.9	3.6	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: None Integrity: None Availability: High

CWE ids for CVE-2021-28838

CWE-476 NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2021-28838

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

EQUAFL/dlink-email-cve2.pdf at main · zyw-200/EQUAFL · GitHub
Third Party Advisory

CVEs referencing this url
https://github.com/zyw-200/EQUAFL/blob/main/dlink-email-cve.pdf

EQUAFL/dlink-email-cve.pdf at main · zyw-200/EQUAFL · GitHub
Exploit;Third Party Advisory

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

Security Bulletin | D-Link
Vendor Advisory

CVEs referencing this url

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Vulnerability Details : CVE-2021-28838

Products affected by CVE-2021-28838

Exploit prediction scoring system (EPSS) score for CVE-2021-28838

CVSS scores for CVE-2021-28838

CWE ids for CVE-2021-28838

References for CVE-2021-28838