CVE-2023-4732

MEDIUM

Linux Kernel - Denial of Service via pfn_swap_entry_to_page Race Condition

Title source: llm
STIX 2.1

Description

A flaw was found in pfn_swap_entry_to_page in memory management subsystem in the Linux Kernel. In this flaw, an attacker with a local user privilege may cause a denial of service problem due to a BUG statement referencing pmd_t x.

References (6)

Core 6
Core References
Third Party Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2023:6901
Third Party Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2023:7077
Third Party Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2023:7539
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2024:0412
Third Party Advisory vdb-entry x_refsource_redhat
https://access.redhat.com/security/cve/CVE-2023-4732
Issue Tracking, Third Party Advisory issue-tracking x_refsource_redhat
https://bugzilla.redhat.com/show_bug.cgi?id=2236982

Scores

CVSS v3 4.7
EPSS 0.0001
EPSS Percentile 2.4%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-362 CWE-366
Status published
Products (10)
linux/linux_kernel < 5.13.19
redhat/codeready_linux_builder 8.0
redhat/codeready_linux_builder_for_arm64 8.0_aarch64
redhat/codeready_linux_builder_for_power_little_endian 8.0_ppc64le
redhat/enterprise_linux 8.0
redhat/enterprise_linux_for_arm_64 8.0_aarch64
redhat/enterprise_linux_for_ibm_z_systems 8.0_s390x
redhat/enterprise_linux_for_power_little_endian 8.0_ppc64le
redhat/enterprise_linux_for_real_time 8.0
redhat/enterprise_linux_for_real_time_for_nfv 8.0
Published Oct 03, 2023
Tracked Since Feb 18, 2026