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CVE-2021-39714

Date: March 16, 2022

In ion_buffer_kmap_get of ion.c, there is a possible use-after-free due to an integer overflow. 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-205573273References: Upstream kernel

Severity Score

Related Resources (6)

https://security-tracker.debian.org/tracker/CVE-2021-39714
https://source.android.com/security/bulletin/pixel/2022-08-01
https://people.canonical.com/~ubuntu-security/cve/CVE-2021-39714
https://nvd.nist.gov/vuln/detail/CVE-2021-39714
https://source.android.com/security/bulletin/pixel/2022-03-01
https://www.mend.io/vulnerability-database/CVE-2021-39714

Severity Score

Weakness Type (CWE)

Integer Overflow or Wraparound

CWE-190

Use After Free

CWE-416

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

CVSS v2

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

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