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CVE-2022-20566

Date: December 15, 2022

In l2cap_chan_put of l2cap_core, there is a possible use after free due to improper locking. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-165329981References: Upstream kernel

Language: C

Severity Score

Related Resources (7)

https://android.googlesource.com/kernel/common/+/cacbff013baa586c63dd779e67d13238bf46c28e
https://access.redhat.com/security/cve/CVE-2022-20566
https://people.canonical.com/~ubuntu-security/cve/CVE-2022-20566
https://nvd.nist.gov/vuln/detail/CVE-2022-20566
https://security-tracker.debian.org/tracker/CVE-2022-20566
https://source.android.com/security/bulletin/pixel/2022-12-01
https://www.mend.io/vulnerability-database/CVE-2022-20566

Severity Score

Weakness Type (CWE)

Use After Free

CWE-416

Improper Locking

CWE-667

CVSS v3.1

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

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