PT-2021-8234 · Linux+3 · Linux Kernel+3

Dan Carpenter · Published 2021-11-29 · Updated 2024-12-02 · CVE-2021-47601

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 NULL pointer dereference in the copy ta binary() function of the amdtee component in the Linux kernel. This could allow an attacker to cause a denial of service. The problem arises from a condition where the get free pages() function returns NULL, which is not properly handled, leading to a NULL dereference.

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:2024-11559

CVE-2021-47601

OPENSUSE-SU-2024_2372-1

OPENSUSE-SU-2024_2394-1

SUSE-SU-2024:2372-1

SUSE-SU-2024:2394-1

SUSE-SU-2024:2902-1

SUSE-SU-2024:2929-1

SUSE-SU-2024:2939-1

Affected Products

Astra Linux

Linux Kernel

Red Os

Suse

References · 1206

• https://git.kernel.org/stable/c/832f3655c6138c23576ed268e31cc76e0f05f2b1 · Patch
• http://repo.red-soft.ru/redos/7.3c/x86_64/updates · Vendor Advisory
• https://git.kernel.org/stable/c/640e28d618e82be78fb43b4bf5113bc90d6aa442 · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-47601 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2024:2929-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2024:2902-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2024:2939-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-47601 · Security Note
• https://bdu.fstec.ru/vul/2024-11559 · Security Note
• https://git.kernel.org/stable/c/9d7482771fac8d8e38e763263f2ca0ca12dd22c6 · Patch
• https://security-tracker.debian.org/tracker/CVE-2021-47601 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2024:2394-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-47601 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-47601 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2024:2372-1 · Vendor Advisory