Buffer overflow in Google Android
CVE-2021-39732
In copy_io_entries of lwis_ioctl.c, there is a possible out of bounds write due to an integer overflow. 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-205992503References: N/A
Vulnerability class: Integer Overflow
EPSS: 0.001 (1.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Google Android
- N/a Android — versions Android kernel
Weakness classification (CWE)
References
- security@android.com (x_refsource_MISC, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-39732?
- CVE-2021-39732 is a high-severity vulnerability in Google Android, classified under Integer Overflow or Wraparound. CVSS score: 7.8/10. Published 2022-03-16.
- How severe is CVE-2021-39732?
- High severity. CVSS v3 base score is 7.8 out of 10.