CVE-2021-4202

HIGH

Linux kernel - Privilege Escalation

Title source: llm
STIX 2.1

Description

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.

References (8)

Core 8
Core References
Issue Tracking, Patch, Third Party Advisory x_refsource_misc
https://bugzilla.redhat.com/show_bug.cgi?id=2036682
Third Party Advisory x_refsource_confirm
https://security.netapp.com/advisory/ntap-20220513-0002/
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2022/06/01/2
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2022/06/04/2
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2022/06/07/2

Scores

CVSS v3 7.0
EPSS 0.0036
EPSS Percentile 27.4%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-362 CWE-416
Status published
Products (1)
linux/linux_kernel 3.2 - 4.4.294
Published Mar 25, 2022
Tracked Since Feb 18, 2026