CVE-2023-20928

HIGH7.8

In binder_vma_close of binder

Published Jan 24, 2023

Modified 9 months ago

Details

In binder_vma_close of binder.c, 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-254837884References: Upstream kernel

References

WEBhttp://packetstormsecurity.com/files/170855/Android-Binder-VMA-Management-Security-Issues.html WEBhttps://source.android.com/security/bulletin/2023-01-01 ADVISORYhttps://www.cve.org/CVERecord?id=CVE-2023-20928

CVSS Analysis

CVSS v3.1

7.8

Exploitability

Attack Vector

LocalAV:L

Attack Complexity

LowAC:L

Privileges Required

LowPR:L

User Interaction

NoneUI:N

Scope

UnchangedS:U

Impact

Confidentiality

HighC:H

Integrity

HighI:H

Availability

HighA:H

7.8/CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Ecosystems

Timeline

PublishedJan 24, 2023

ModifiedApr 2, 2025