Vulnerability Details : CVE-2021-39640
In __dwc3_gadget_ep0_queue of ep0.c, there is a possible out of bounds write 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-157294279References: N/A
Published
2021-12-15 19:15:15
Updated
2021-12-20 18:41:41
Vulnerability category: Memory Corruption
Exploit prediction scoring system (EPSS) score for CVE-2021-39640
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-2021-39640
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
7.2
|
HIGH | AV:L/AC:L/Au:N/C:C/I:C/A:C |
3.9
|
10.0
|
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-2021-39640
-
The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-39640
-
https://source.android.com/security/bulletin/pixel/2021-12-01
Pixel Update Bulletin—December 2021 | Android Open Source ProjectPatch;Vendor Advisory
Products affected by CVE-2021-39640
- cpe:2.3:o:google:android:-:*:*:*:*:*:*:*