Vulnerability Details : CVE-2023-21020
In registerSignalHandlers of main.c, there is a possible local arbitrary code execution due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-13Android ID: A-256591441
Published
2023-03-24 20:15:13
Updated
2023-03-29 17:21:16
Vulnerability category: Memory Corruption
Products affected by CVE-2023-21020
- cpe:2.3:o:google:android:13.0:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-21020
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 6 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-21020
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.7
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
0.8
|
5.9
|
NIST |
CWE ids for CVE-2023-21020
-
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2023-21020
-
https://source.android.com/security/bulletin/pixel/2023-03-01
Pixel Update Bulletin—March 2023 | Android Open Source ProjectPatch;Vendor Advisory
Jump to