Vulnerability Details : CVE-2021-39793
In kbase_jd_user_buf_pin_pages of mali_kbase_mem.c, there is a possible out of bounds write due to a logic error in the code. 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-210470189References: N/A
Published
2022-03-16 15:15:12
Updated
2022-03-23 19:25:18
Vulnerability category: Memory Corruption
Products affected by CVE-2021-39793
- cpe:2.3:o:google:android:-:*:*:*:*:*:*:*
CVE-2021-39793 is in the CISA Known Exploited Vulnerabilities Catalog
CISA vulnerability name:
Google Pixel Out-of-Bounds Write Vulnerability
CISA required action:
Apply updates per vendor instructions.
CISA description:
Google Pixel contains a possible out-of-bounds write due to a logic error in the code that could lead to local escalation of privilege.
Notes:
https://nvd.nist.gov/vuln/detail/CVE-2021-39793
Added on
2022-04-11
Action due date
2022-05-02
Exploit prediction scoring system (EPSS) score for CVE-2021-39793
0.07%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 28 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-39793
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
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-2021-39793
-
The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-39793
-
https://source.android.com/security/bulletin/pixel/2022-03-01
Pixel Update Bulletin—March 2022 | Android Open Source ProjectVendor Advisory
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