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
View at NVD,   CVE.org
Vulnerability category: Memory Corruption

Products affected by CVE-2021-39793

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

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