Vulnerability Details : CVE-2021-39681
In delete_protocol of main.c, there is a possible arbitrary code execution 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-200251074References: N/A
Published
2022-01-14 20:15:11
Updated
2022-01-19 21:11:56
Vulnerability category: Memory Corruption
Exploit prediction scoring system (EPSS) score for CVE-2021-39681
Probability of exploitation activity in the next 30 days: 0.04%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 6 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2021-39681
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
4.6
|
MEDIUM | AV:L/AC:L/Au:N/C:P/I:P/A:P |
3.9
|
6.4
|
NIST |
|
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-2021-39681
-
Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-39681
-
https://source.android.com/security/bulletin/pixel/2022-01-01
Pixel Update Bulletin—January 2022 | Android Open Source ProjectVendor Advisory
Products affected by CVE-2021-39681
- cpe:2.3:o:google:android:-:*:*:*:*:*:*:*