Vulnerability in Google Android
CVE-2023-21400
In multiple functions of io_uring.c, there is a possible kernel memory corruption due to improper locking. This could lead to local escalation of privilege in the kernel with System execution privileges needed. User interaction is not needed for exploitation.
EPSS: 0.003 (17.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Google Android — versions Android kernel
- Debian Debian_linux — versions 10.0, 11.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@android.com (Vendor Advisory)
- security@android.com (Mailing List, Third Party Advisory)
- security@android.com (Exploit, Mailing List, Third Party Advisory)
- security@android.com (Mailing List, Third Party Advisory)
- security@android.com (Mailing List)
- security@android.com (Third Party Advisory)
- security@android.com (VDB Entry, Third Party Advisory)
- security@android.com (Mailing List, Third Party Advisory)
- security@android.com
Frequently asked questions
- What is CVE-2023-21400?
- CVE-2023-21400 is a medium-severity vulnerability in Google Android, classified under Improper Locking. CVSS score: 6.7/10. Published 2023-07-13.
- How severe is CVE-2023-21400?
- Medium severity. CVSS v3 base score is 6.7 out of 10.
- Is CVE-2023-21400 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.