1. Home
  2. CVE Database
  3. CVE-2023-0468
MEDIUM · 4.7

CVE-2023-0468

A use-after-free flaw was found in io_uring/poll.c in io_poll_check_events in the io_uring subcomponent in the Linux Kernel due to a race condition of poll_refs. This flaw may cause a NULL pointer der...

Vulnerability Description

A use-after-free flaw was found in io_uring/poll.c in io_poll_check_events in the io_uring subcomponent in the Linux Kernel due to a race condition of poll_refs. This flaw may cause a NULL pointer dereference.

CVSS Score

4.7

MEDIUM

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH

Affected Products

VendorProductVersions
LinuxLinux Kernel< 6.1

Related Weaknesses (CWE)

CWE-416

References

FAQ

What is CVE-2023-0468?

CVE-2023-0468 is a vulnerability with a CVSS score of 4.7 (MEDIUM). A use-after-free flaw was found in io_uring/poll.c in io_poll_check_events in the io_uring subcomponent in the Linux Kernel due to a race condition of poll_refs. This flaw may cause a NULL pointer der...

How severe is CVE-2023-0468?

CVE-2023-0468 has been rated MEDIUM with a CVSS base score of 4.7/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2023-0468?

Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.