CVE-2023-21116 — MEDIUM (6.7)

Vulnerability Description

In verifyReplacingVersionCode of InstallPackageHelper.java, there is a possible way to downgrade system apps below system image version due to a logic error in the code. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-12 Android-12L Android-13Android ID: A-256202273

CVSS Score

6.7

MEDIUM

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

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Google	Android	11.0

Related Weaknesses (CWE)

CWE-863

References

https://source.android.com/security/bulletin/2023-05-01PatchVendor Advisory
https://source.android.com/security/bulletin/2023-05-01PatchVendor Advisory

FAQ

What is CVE-2023-21116?

CVE-2023-21116 is a vulnerability with a CVSS score of 6.7 (MEDIUM). In verifyReplacingVersionCode of InstallPackageHelper.java, there is a possible way to downgrade system apps below system image version due to a logic error in the code. This could lead to local escal...

How severe is CVE-2023-21116?

CVE-2023-21116 has been rated MEDIUM with a CVSS base score of 6.7/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2023-21116?

Check the references section above for vendor advisories and patch information. Affected products include: Google Android.