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Status published
High
CVE-2021-4202
A use-after-free flaw was found in nci_request in net/nfc/nci/core.c in...
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2036682
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=3e3b5dfcd16a3e254aab61bd1e8c417dd4503102
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=48b71a9e66c2eab60564b1b1c85f4928ed04e406
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=86cdf8e38792545161dbe3350a7eced558ba4d15
- https://security.netapp.com/advisory/ntap-20220513-0002/
- http://www.openwall.com/lists/oss-security/2022/06/01/2
- http://www.openwall.com/lists/oss-security/2022/06/04/2
- http://www.openwall.com/lists/oss-security/2022/06/07/2
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Affected Vendor
Affected Software
kernel
Vulnerable Versions:
kernel 5.16 rc2
Timeline
Official Publish:
March 25th, 2022
Last Modified:
August 3rd, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H