PT-2024-11342 · Linux+2 · Linux Kernel+2

Hou Tao · Published 2021-06-17 · Updated 2024-06-24 · CVE-2021-47343

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 vulnerability has been resolved in the Linux kernel related to the dm btree remove function. The issue occurs when the remove raw() function in dm btree remove() fails due to an IO read error, causing the shadow spine::root value to be uninitialized. This uninitialized value is then assigned to new root, leading to potential out-of-bound memory access when trying to read the details info tree again. This can result in a general protection fault.

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

Weakness Enumeration

CWE-1188

Related Identifiers

BDU:2025-14371

CVE-2021-47343

OPENSUSE-SU-2024_2185-1

SUSE-SU-2024:1979-1

SUSE-SU-2024:1983-1

SUSE-SU-2024:2010-1

SUSE-SU-2024:2184-1

SUSE-SU-2024:2185-1

Affected Products

Astra Linux

Linux Kernel

Suse

References · 674

• https://git.kernel.org/stable/c/89bf942314b78d454db92427201421b5dec132d9 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2024:1983-1 · Vendor Advisory
• https://git.kernel.org/stable/c/964d57d1962d7e68f0f578f05d9ae4a104d74851 · Patch
• https://osv.dev/vulnerability/CVE-2021-47343 · Vendor Advisory
• https://git.kernel.org/stable/c/ad365e9351ac2b450e7e79932ff6abf59342d91a · Patch
• https://osv.dev/vulnerability/SUSE-SU-2024:1979-1 · Vendor Advisory
• https://git.kernel.org/stable/c/73f27adaa73e3057a9ec464e33c4f54d34ea5de3 · Patch
• https://git.kernel.org/stable/c/4c84b3e0728ffe10d89c633694c35a02b5c477dc · Patch
• https://git.kernel.org/stable/c/c154775619186781aaf8a99333ac07437a1768d5 · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-47343 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2024:2185-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2021-47343 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-47343 · Vendor Advisory
• https://git.kernel.org/stable/c/ba47e65a5de3e0e8270301a409fc63d3129fdb9e · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2021-47343 · Security Note