CVE-2023-0469

Kernel: file reference underflow problem in io_uring/filetable in io_install_fixed_file

Published Jan 25, 2023 CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
Description
A use-after-free flaw was found in io_uring/filetable.c in io_install_fixed_file in the io_uring subcomponent in the Linux Kernel during call cleanup. This flaw may lead to a denial of service.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2023-12523 A use-after-free flaw was found in io_uring/filetable.c in io_install_fixed_file in the io_uring subcomponent in the Linux Kernel during call cleanup. This flaw may lead to a denial of service.
Ubuntu USN Ubuntu USN USN-5914-1 Linux kernel (OEM) vulnerabilities
Ubuntu USN Ubuntu USN USN-5970-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-5979-1 Linux kernel (HWE) vulnerabilities
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
redhat
Published
Updated
Apr 1, 2025, 2:59 PM
Reserved
Jan 24, 2023, 12:00 AM
Status
Modified
Published
Jan 26, 2023, 9:18 PM
Modified
Jun 17, 2026, 5:25 AM
Severity
Low
Public date
Nov 23, 2022, 6:30 AM