Vulnerability Details : CVE-2023-20937
Potential exploit
In several functions of the Android Linux kernel, there is a possible way to corrupt memory due to a use after free. 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-257443051References: Upstream kernel
Published
2023-02-28 17:15:11
Updated
2025-03-21 18:15:31
Vulnerability category: Memory Corruption
Products affected by CVE-2023-20937
- cpe:2.3:o:google:android:-:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-20937
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 9 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-20937
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
134c704f-9b21-4f2e-91b3-4a467353bcc0 | 2025-03-21 |
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
NIST |
CWE ids for CVE-2023-20937
-
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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.Assigned by:
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)
- nvd@nist.gov (Primary)
References for CVE-2023-20937
-
http://packetstormsecurity.com/files/171239/Android-GKI-Kernels-Contain-Broken-Non-Upstream-Speculative-Page-Faults-MM-Code.html
Android GKI Kernels Contain Broken Non-Upstream Speculative Page Faults MM Code ≈ Packet StormExploit
-
https://source.android.com/security/bulletin/2023-02-01
Android Security Bulletin—February 2023 | Android Open Source ProjectPatch;Vendor Advisory
Jump to