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CVE-2021-39648

Date: December 15, 2021

In gadget_dev_desc_UDC_show of configfs.c, there is a possible disclosure of kernel heap memory due to a race condition. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-160822094References: Upstream kernel

Severity Score

Related Resources (5)

https://security-tracker.debian.org/tracker/CVE-2021-39648
https://source.android.com/security/bulletin/pixel/2021-12-01
https://people.canonical.com/~ubuntu-security/cve/CVE-2021-39648
https://nvd.nist.gov/vuln/detail/CVE-2021-39648
https://www.mend.io/vulnerability-database/CVE-2021-39648

Severity Score

Weakness Type (CWE)

Exposure of Resource to Wrong Sphere

CWE-668

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CWE-362

CVSS v3.1

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

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): NONE
Availability (A): NONE
Additional information:

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