CVE Vulnerability

CVE-2021-4202

A use-after-free flaw was found in nci_request in net/nfc/nci/core.c in NFC Controller Interface (NCI) in the Linux kernel. This flaw could allow a local attacker with user privileges to cause a data race problem while the device is getting removed, leading to a privilege escalation problem.

6.9 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 3.4 / Impact : 10

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

Scope

7 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 1 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=86cdf8e38792545161dbe3350a7eced558ba4d15 Exploit Patch
https://bugzilla.redhat.com/show_bug.cgi?id=2036682 Issue Tracking Patch
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=3e3b5dfcd16a3e254aab61bd1e8c417dd4503102 Exploit Patch
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=48b71a9e66c2eab60564b1b1c85f4928ed04e406 Exploit Patch
https://security.netapp.com/advisory/ntap-20220513-0002/ Third Party Advisory
http://www.openwall.com/lists/oss-security/2022/06/01/2 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2022/06/04/2 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2022/06/07/2 Mailing List Third Party Advisory
Configurations

Configuration 1

cpe:2.3:o:linux:linux_kernel:5.16:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.16:-:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Information

Published : 2022-03-25 07:15

Updated : 2022-10-06 02:25

NVD link : CVE-2021-4202

Mitre link : CVE-2021-4202

Products Affected

Linux

Linux Kernel

CWE
CWE-362

CWE-416