PT-2024-11184 · Linux · Linux Kernel

Published 2021-03-24 · Updated 2025-02-27 · CVE-2021-47134

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 occurs when no valid fdt is found, causing initial boot params to be null. This happens when setup arch() invokes efi init() and then efi get fdt params(). To prevent further fdt processing, it should be stopped when no valid fdt is found. This problem was encountered on risc-v.

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

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

BDU:2025-03653

CVE-2021-47134

Affected Products

Linux Kernel

References · 20

• https://security-tracker.debian.org/tracker/CVE-2021-47134 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-47134 · Vendor Advisory
• https://git.kernel.org/stable/c/8a7e8b4e5631a03ea2fee27957857a56612108ca · Patch
• https://git.kernel.org/stable/c/5148066edbdc89c6fe5bc419c31a5c22e5f83bdb · Patch
• https://cve.org/CVERecord?id=CVE-2021-47134 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-47134 · Security Note
• https://git.kernel.org/stable/c/668a84c1bfb2b3fd5a10847825a854d63fac7baa · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-47134 · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-03653 · Security Note
• https://osv.dev/vulnerability/CVE-2021-47134 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-47134 · Vendor Advisory
• https://git.linuxtesting.ru/pub/scm/linux/kernel/git/lvc/linux-stable.git/commit/?h=v5.10.176-lvc1&id=5148066edbdc89c6fe5bc419c31a5c22e5f83bdb · Note
• https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.43 · Note
• https://t.me/cvenotify/112572 · Telegram Post
• https://git.kernel.org/linus/668a84c1bfb2b3fd5a10847825a854d63fac7baa · Note