CVE-2021-34430

CVSS V2 Medium 5 CVSS V3 High 7.5

Description

Eclipse TinyDTLS through 0.9-rc1 relies on the rand function in the C library, which makes it easier for remote attackers to compute the master key and then decrypt DTLS traffic.

Overview

CVE ID
CVE-2021-34430

Assigner
emo@eclipse.org

Vulnerability Status
Analyzed

Published Version
2021-07-08T03:15:07

Last Modified Date
2021-07-12T15:50:33

Weakness Enumerations

CWE	URL
CWE-326	http://cwe.mitre.org/data/definitions/326.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version Start	Version End
cpe:2.3:a:eclipse:tinydtls::::::::	1	OR		0.8.2
cpe:2.3:a:eclipse:tinydtls:0.9:rc1::::::	1	OR

CVSS Version 2

Version
2.0

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

Access Vector
NETWORK

Access Compatibility
LOW

Authentication
NONE

Confidentiality Impact
PARTIAL

Integrity Impact
NONE

Availability Impact
NONE

Base Score
5

Severity
MEDIUM

Exploitability Score
10

Impact Score
2.9

CVSS Version 3

Version
3.1

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

Attack Vector
NETWORK

Attack Compatibility
LOW

Privileges Required
NONE

User Interaction
NONE

Scope
UNCHANGED

Confidentiality Impact
HIGH

Availability Impact
NONE

Base Score
7.5

Base Severity
HIGH

Exploitability Score
3.9

Impact Score
3.6

References

Reference URL	Reference Tags
https://bugs.eclipse.org/bugs/show_bug.cgi?id=568803	Exploit Issue Tracking Vendor Advisory

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2021-34430
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34430

History

Created	Old Value	New Value	Data Type	Notes
2022-05-10 07:07:33				Added to TrackCVE
2022-12-05 05:35:34	security@eclipse.org	emo@eclipse.org	CVE Assigner	updated
2022-12-05 05:35:34	2021-07-08T03:15Z	2021-07-08T03:15:07	CVE Published Date	updated
2022-12-05 05:35:34		2021-07-12T15:50:33	CVE Modified Date	updated
2022-12-05 05:35:34		Analyzed	Vulnerability Status	updated