PT-2021-7946 · Linux+4 · Linux Kernel+4

Rohit Keshri · Published 2021-06-30 · Updated 2024-01-25 · CVE-2023-4732

Positive Technologies (AI Summary)

CVSS v3.1

4.7

Medium

Base vector

AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Linux Kernel (affected versions not specified)

Description A flaw was found in the pfn swap entry to page function in the memory management subsystem of the Linux Kernel. This issue is related to a race condition and can be exploited by an attacker with local user privileges to cause a denial of service problem due to a BUG statement referencing pmd t x. The vulnerability is associated with concurrent access to a resource.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

Race Condition

Weakness Enumeration

CWE-366

CWE-362

Related Identifiers

ALSA-2023:7077

BDU:2023-06419

CESA-2023_6901

CESA-2023_7077

CVE-2023-4732

RHSA-2023:6901

RHSA-2023:7077

RHSA-2023:7539

RHSA-2023_6901

RHSA-2023_7077

RHSA-2024:0412

Affected Products

Almalinux

Astra Linux

Centos

Linux Kernel

Red Hat

References · 124

• https://errata.almalinux.org/8/ALSA-2023-7077.html · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-4732 · Vendor Advisory
• https://osv.dev/vulnerability/ALSA-2023:7077 · Vendor Advisory
• https://access.redhat.com/errata/RHSA-2024:0412 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-4732 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-4732 · Vendor Advisory
• https://access.redhat.com/errata/RHSA-2023:7077 · Vendor Advisory
• https://bdu.fstec.ru/vul/2023-06419 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-4732 · Security Note
• https://linux.oracle.com/errata/ELSA-2023-7077.html · Vendor Advisory
• https://access.redhat.com/errata/RHSA-2023:6901 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-4732 · Vendor Advisory
• https://access.redhat.com/errata/RHSA-2023:7539 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2023-4732 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-4732 · Security Note