PT-2021-8249 · Linux · Linux Kernel

Ionela Voinescu + 4 · Published 2021-06-18 · Updated 2025-04-02 · CVE-2021-47313

Positive Technologies (AI Summary)

CVSS v3.1

8.4

High

Base vector

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

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

Description The issue is related to a potential memory leak in the cppc cpufreq cpu init component of the Linux kernel. This memory leak occurs when resources are allocated but not freed in case of a failure. The vulnerability can be exploited 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.

Resource Exhaustion

Weakness Enumeration

CWE-400

Related Identifiers

BDU:2025-00787

CVE-2021-47313

Affected Products

Linux Kernel

References · 15

• https://osv.dev/vulnerability/CVE-2021-47313 · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-00787 · Security Note
• https://git.kernel.org/stable/c/e1b2b2b61d30d7ce057ec17237c217d152ed97f2 · Patch
• https://git.kernel.org/stable/c/b775383355755885b19d2acef977f1ca132e80a3 · Patch
• https://security-tracker.debian.org/tracker/CVE-2021-47313 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-47313 · Vendor Advisory
• https://git.kernel.org/stable/c/fe2535a44904a77615a3af8e8fd7dafb98fb0e1b · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2021-47313 · Security Note
• https://wiki.astralinux.ru/astra-linux-se81-bulletin-20241206SE81 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-47313 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-47313 · Vendor Advisory
• https://lore.kernel.org/linux-cve-announce/2024052129-CVE-2021-47313-af10@gregkh/T/#u · Note
• https://access.redhat.com/security/cve/CVE-2021-47313 · Note
• https://git.kernel.org/linus/fe2535a44904a77615a3af8e8fd7dafb98fb0e1b · Note
• https://t.me/cvenotify/117354 · Telegram Post