Vulnerability Details : CVE-2023-4611

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.
Published 2023-08-29 22:15:09
Updated 2023-09-01 18:36:56
Source Red Hat, Inc.
View at NVD,   CVE.org
Vulnerability category: Memory Corruption

Products affected by CVE-2023-4611

Exploit prediction scoring system (EPSS) score for CVE-2023-4611

EPSS FAQ
0.02%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 3 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2023-4611

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
6.3
 MEDIUM CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:H
1.0
5.2
 NIST
7.0
 HIGH CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
1.0
5.9
 Red Hat, Inc.

CWE ids for CVE-2023-4611

  • The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2023-4611

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