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CVE-2023-0468

Date: January 24, 2023

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.

Language: C

Severity Score

Related Resources (5)

https://nvd.nist.gov/vuln/detail/CVE-2023-0468
https://bugzilla.redhat.com/show_bug.cgi?id=2164024
https://security-tracker.debian.org/tracker/CVE-2023-0468
https://people.canonical.com/~ubuntu-security/cve/CVE-2023-0468
https://www.mend.io/vulnerability-database/CVE-2023-0468

Severity Score

Weakness Type (CWE)

Use After Free

CWE-416

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): HIGH
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

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