PT-2021-8124 · Linux+3 · Linux Kernel+3

Published 2021-12-23 · Updated 2025-01-14 · CVE-2021-47093

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/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 The issue is related to a memory leak in the Linux kernel's platform/x86 component, specifically in the intel pmc core, when device registration fails during module initialization. The platform device structure needs to be freed using platform device put() to properly free all resources, such as the device name. Exploitation of this issue may allow an attacker to cause a denial of service.

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

Memory Leak

Weakness Enumeration

CWE-401

Related Identifiers

BDU:2024-08380

CVE-2021-47093

OPENSUSE-SU-2024_1321-1

OPENSUSE-SU-2024_1322-1

OPENSUSE-SU-2024_1322-2

OPENSUSE-SU-2024_1332-1

OPENSUSE-SU-2024_1332-2

OPENSUSE-SU-2024_1466-1

OPENSUSE-SU-2024_1480-1

OPENSUSE-SU-2024_1490-1

SUSE-SU-2024:1320-1

SUSE-SU-2024:1321-1

SUSE-SU-2024:1466-1

SUSE-SU-2024:1480-1

SUSE-SU-2024:1490-1

Affected Products

Astra Linux

Linux Kernel

Red Os

Suse

References · 465

• https://git.kernel.org/stable/c/26a8b09437804fabfb1db080d676b96c0de68e7c · Patch
• https://osv.dev/vulnerability/SUSE-SU-2024:1320-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2024:1466-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-47093 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-47093 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2024:1480-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-47093 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-47093 · Security Note
• https://bdu.fstec.ru/vul/2024-08380 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-47093 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2021-47093 · Vendor Advisory
• https://git.kernel.org/stable/c/7a37f2e370699e2feca3dca6c8178c71ceee7e8a · Patch
• https://cve.org/CVERecord?id=CVE-2021-47093 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2024:1490-1 · Vendor Advisory
• https://git.kernel.org/stable/c/9ca1324755f1f8629a370af5cc315b175331f5d1 · Patch