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BT: Assertion failure on repeated LL_CONNECTION_PARAM_REQ

Moderate
d3zd3z published GHSA-46h3-hjcq-2jjr Jun 21, 2021

Package

zephyr (west)

Affected versions

>=2.5.0, >=1.14

Patched versions

v2.6.0

Description

Impact

Assertion reachable with repeated LL_CONNECTION_PARAM_REQ.

Patches

This has been fixed in:

For more information

If you have any questions or comments about this advisory:

embargo: 2021-06-11
zepsec: ZEPSEC-133

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Adjacent
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVE ID

CVE-2021-3430

Weaknesses

Credits