CVE-2023-1476

HIGH

Linux Kernel < 5.14 - Use-After-Free in mm/mremap Memory Address Space Accounting

Title source: llm
STIX 2.1

Description

A use-after-free flaw was found in the Linux kernel’s mm/mremap memory address space accounting source code. This issue occurs due to a race condition between rmap walk and mremap, allowing a local user to crash the system or potentially escalate their privileges on the system.

References (4)

Core 4
Core References
Third Party Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2023:1659
Third Party Advisory vdb-entry x_refsource_redhat
https://access.redhat.com/security/cve/CVE-2023-1476
Issue Tracking issue-tracking x_refsource_redhat
https://bugzilla.redhat.com/show_bug.cgi?id=2176035

Scores

CVSS v3 7.0
EPSS 0.0002
EPSS Percentile 5.4%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-416
Status published
Products (6)
linux/linux_kernel < 5.14
redhat/enterprise_linux 8.0
redhat/enterprise_linux_eus 8.8
redhat/enterprise_linux_for_power_little_endian 8.0_ppc64le
redhat/enterprise_linux_for_power_little_endian_eus 8.8_ppc64le
redhat/enterprise_linux_server_tus 8.8
Published Nov 03, 2023
Tracked Since Feb 18, 2026