PT-2021-8176 · Linux+3 · Linux Kernel+3

Pavel Skripkin · Published 2021-11-17 · Updated 2025-01-14 · CVE-2021-47204

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/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 use-after-free bug in the dpaa2-eth component of the Linux kernel. Access to netdev after free netdev() will cause this bug. The problem is resolved by moving the debug log before the free netdev() call. This bug may allow an attacker to elevate privileges in the system.

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

Exploit

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

BDU:2024-09226

CVE-2021-47204

OESA-2024-1944

OPENSUSE-SU-2024_1641-1

OPENSUSE-SU-2024_1644-1

OPENSUSE-SU-2024_1659-1

OPENSUSE-SU-2024_1663-1

SUSE-SU-2024:1641-1

SUSE-SU-2024:1643-1

SUSE-SU-2024:1644-1

SUSE-SU-2024:1646-1

SUSE-SU-2024:1647-1

SUSE-SU-2024:1659-1

SUSE-SU-2024:1663-1

SUSE-SU-2024:1870-1

Affected Products

Astra Linux

Linux Kernel

Red Os

Suse

References · 857

• 🔥 https://github.com/MaherAzzouzi/CVE-2024-26817-amdkfd · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2021-47206 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2022-48786 · Security Note
• https://git.kernel.org/stable/c/1c4099dc0d6a01e76e4f7dd98e4b3e0d55d80ad9 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2024:1646-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-48804 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2024-40942 · Security Note
• https://osv.dev/vulnerability/CVE-2021-47204 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-40981 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2024-38627 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2024:1870-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2024:1644-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-47204 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-40988 · Security Note
• https://git.kernel.org/stable/c/d74ff10ed2d93dc9b67e99a74b36fb9a83273d8a · Patch