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CVE-2020-25661

Date: November 5, 2020

A Red Hat only CVE-2020-12351 regression issue was found in the way the Linux kernel's Bluetooth implementation handled L2CAP packets with A2MP CID. This flaw allows a remote attacker in an adjacent range to crash the system, causing a denial of service or potentially executing arbitrary code on the system by sending a specially crafted L2CAP packet. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

Severity Score

Related Resources (9)

https://access.redhat.com/security/vulnerabilities/BleedingTooth
https://bugzilla.redhat.com/show_bug.cgi?id=1891483
https://access.redhat.com/errata/RHSA-2020:4686
https://access.redhat.com/errata/RHSA-2020:4685
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-25661
https://access.redhat.com/security/cve/CVE-2020-25661
https://access.redhat.com/security/cve/CVE-2020-12351
https://nvd.nist.gov/vuln/detail/CVE-2020-25661
https://www.mend.io/vulnerability-database/CVE-2020-25661

Severity Score

Weakness Type (CWE)

Access of Resource Using Incompatible Type ('Type Confusion')

CWE-843

CVSS v3.1

Base Score:
Attack Vector (AV): ADJACENT_NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): ADJACENT
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): COMPLETE
Integrity (I): COMPLETE
Availability (A): COMPLETE
Additional information:

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