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MitreCVE-2021-38386

HistoryAug 10, 2021 - 7:15 p.m.

CVE-2021-38386

2021-08-1019:15:07

CWE-120

mitre

web.nvd.nist.gov

contiki

buffer overflow

telnet service

denial of service

cve-2021-38386

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

AI Score

7.7

Confidence

High

EPSS

0.002

Percentile

60.0%

JSON

In Contiki 3.0, a buffer overflow in the Telnet service allows remote attackers to cause a denial of service because the ls command is mishandled when a directory has many files with long names.

Affected configurations

Nvd

Node

contiki-oscontikiMatch3.0

VendorProductVersionCPE
contiki-oscontiki3.0cpe:2.3:o:contiki-os:contiki:3.0:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
contiki-os	contiki	3.0	cpe:2.3:o:contiki-os:contiki:3.0:::::::*

References

github.com/contiki-os/contiki/issues/2687

Social References

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

AI Score

7.7

Confidence

High

EPSS

0.002

Percentile

60.0%

JSON

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