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nvd[email protected]NVD:CVE-2021-42147
HistoryJan 24, 2024 - 7:15 p.m.

CVE-2021-42147

2024-01-2419:15:08
CWE-125
web.nvd.nist.gov
2
cve-2021-42147
buffer over-read
contiki-ng
tinydtls
denial of service
crafted data packet

CVSS3

9.1

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

8.9

Confidence

High

EPSS

0.001

Percentile

48.6%

Buffer over-read vulnerability in the dtls_sha256_update function in Contiki-NG tinyDTLS through master branch 53a0d97 allows remote attackers to cause a denial of service via crafted data packet.

Affected configurations

Nvd
Node
contiki-ngtinydtlsMatch2018-08-30
VendorProductVersionCPE
contiki-ngtinydtls2018-08-30cpe:2.3:a:contiki-ng:tinydtls:2018-08-30:*:*:*:*:*:*:*

CVSS3

9.1

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

8.9

Confidence

High

EPSS

0.001

Percentile

48.6%

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