PT-2021-8024 · Linux+2 · Linux Kernel+2

Published 2021-04-13 · Updated 2024-08-19 · CVE-2021-46914

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 an unbalanced device enable/disable in suspend/resume, caused by the removal of pci enable device mem() from ixgbe resume() in commit 6f82b2558735. This removal led to an unbalanced increase/decrease of dev->enable cnt. The problem can be fixed by adding pci enable device mem() back. The vulnerability may allow an attacker to cause a denial of service.

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

Exploit

Improper Resource Release

Weakness Enumeration

CWE-404

Related Identifiers

BDU:2024-03147

CVE-2021-46914

OPENSUSE-SU-2024_1489-1

SUSE-SU-2024:1465-1

SUSE-SU-2024:1489-1

Affected Products

Linux Kernel

Red Os

Suse

References · 347

• 🔥 https://github.com/Kakashiiiiy/CVE-2021-29155 · Exploit
• 🔥 https://github.com/benschlueter/CVE-2021-29155 · Exploit
• https://osv.dev/vulnerability/SUSE-SU-2024:1489-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2021-46914 · Vendor Advisory
• https://git.kernel.org/stable/c/be07581aacae7cd0a073afae8e8862032f794309 · Patch
• https://git.kernel.org/stable/c/f1b4be4a753caa4056496f679d70550d0c11a264 · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-46914 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-46914 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-46914 · Vendor Advisory
• https://git.kernel.org/stable/c/debb9df311582c83fe369baa35fa4b92e8a9c58a · Patch
• https://osv.dev/vulnerability/CVE-2021-46914 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-46914 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2024:1465-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-46914 · Vendor Advisory
• https://bdu.fstec.ru/vul/2024-03147 · Security Note