PT-2024-11143 · Linux · Linux Kernel

Published 2021-04-09 · Updated 2024-12-09 · CVE-2021-47053

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 A memory leak issue has been resolved in the Linux kernel, specifically in the crypto: sun8i-ss module. The problem occurs due to several failure return paths that do not free the pad, resulting in a resource leak.

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:2025-07261

CVE-2021-47053

Affected Products

Linux Kernel

References · 23

• https://git.kernel.org/stable/c/c633e025bd04f54d7b33331cfcdb71354b08ce59 · Patch
• https://git.kernel.org/stable/c/d3d702084d125689edb2b9395c707e09b471352e · Patch
• https://bdu.fstec.ru/vul/2025-07261 · Security Note
• https://git.kernel.org/stable/c/50274b01ac1689b1a3f6bc4b5b3dbf361a55dd3a · Patch
• https://cve.org/CVERecord?id=CVE-2021-47053 · Security Note
• https://ubuntu.com/security/CVE-2021-47053 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-47053 · Vendor Advisory
• https://git.kernel.org/stable/c/2c67a9333da9d0a3b87310e0d116b7c9070c7b00 · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-47053 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2021-47053 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-47053 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-47053 · Vendor Advisory
• https://git.linuxtesting.ru/pub/scm/linux/kernel/git/lvc/linux-stable.git/commit/?h=v5.10.176-lvc1&id=2c67a9333da9d0a3b87310e0d116b7c9070c7b00 · Note
• https://git.linuxtesting.ru/pub/scm/linux/kernel/git/lvc/linux-stable.git/commit/?h=v5.10.176-lvc1&id=2c67a9333da9d0a3b87310e0d116b7c9070c7b00 · Note
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-47053 · Note