PT-2024-9049 · Linux+3 · Linux Kernel+3

Baokun Li + 1 · Published 2024-05-24 · Updated 2025-01-07 · CVE-2021-47549

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 vulnerability in the sata fsl component of the Linux kernel. This vulnerability can be triggered when the rmmod sata fsl.ko command is executed in the PPC64 GNU/Linux environment, leading to a bug report. The vulnerability is caused by the execution of the iounmap and kfree functions in the wrong order, resulting in a use-after-free condition. The vulnerability can potentially 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:2024-10731

CVE-2021-47549

OESA-2024-1692

OPENSUSE-SU-2024_2185-1

OPENSUSE-SU-2024_2189-1

SUSE-SU-2024:2008-1

SUSE-SU-2024:2010-1

SUSE-SU-2024:2011-1

SUSE-SU-2024:2019-1

SUSE-SU-2024:2185-1

SUSE-SU-2024:2189-1

SUSE-SU-2024:2190-1

SUSE-SU-2024:3189-1

SUSE-SU-2024:3251-1

SUSE-SU-2024:3252-1

Affected Products

Astra Linux

Linux Kernel

Red Os

Suse

References · 1723

• 🔥 https://github.com/lanleft/CVE-2023-1829 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2021-47357 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-47443 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2024-27020 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-52693 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-47549 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2024-35960 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-47405 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-52805 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2021-47549 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-47495 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2024-36940 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-47475 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-52832 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2024:3251-1 · Vendor Advisory