CVE-2023-21400: Medium severity Google Android vulnerability
In multiple functions of iouring.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.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/linuxto a version that resolves this vulnerability.Fixed in 6.1.176-1Fixed in 6.1.190-1Fixed in 6.12.107-1Fixed in 6.12.115-2Fixed in 7.2.12-1Fixed in 7.2.15-1 - Upgrade
Upgrade
android/:unknown:to a version that resolves this vulnerability.Fixed in :2023-07-05
Event History
Frequently Asked Questions
What is CVE-2023-21400?
CVE-2023-21400 is a vulnerability in multiple functions of io_uring.c that could lead to local escalation of privilege in the kernel.
What is the severity of CVE-2023-21400?
The severity of CVE-2023-21400 is medium with a CVSS score of 6.7.
How can CVE-2023-21400 be exploited?
CVE-2023-21400 can be exploited without user interaction.
Which software versions are affected by CVE-2023-21400?
The affected software versions include Linux versions 5.18.2-1, 5.15.0-82.91, and others.
Where can I find more information about CVE-2023-21400?
You can find more information about CVE-2023-21400 on the official Google Android security bulletin and openwall.com.