CVE-2023-4611

Use after free race between mbind() and vma-locked page fault

Published Aug 29, 2023 CVSS 3.1 · 7 High EPSS < 1% KEV · Not listed
Description
A use-after-free flaw was found in mm/mempolicy.c in the memory management subsystem in the Linux Kernel. This issue is caused by a race between mbind() and VMA-locked page fault, and may allow a local attacker to crash the system or lead to a kernel information leak.

Remediation

Vendor Workaround

Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2023-54464 A use-after-free flaw was found in mm/mempolicy.c in the memory management subsystem in the Linux Kernel. This issue is caused by a race between mbind() and VMA-locked page fault, and may allow a local attacker to crash the system or lead to a kernel information leak.
History
Type Values Removed Values Added
Metrics epss

{'score': 0.00017}

epss

{'score': 0.00015}

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
redhat
Published
Updated
Feb 27, 2025, 9:03 PM
Reserved
Aug 29, 2023, 7:31 PM
Status
Analyzed
Published
Aug 29, 2023, 10:15 PM
Modified
Sep 11, 2026, 4:15 PM
Severity
Moderate
Public date
Jul 28, 2023, 12:00 AM