CVE-2021-4202
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2021-4202
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-4202.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2021-4202
- Downstream
- Related
- Published
- 2022-03-25T19:15:09Z
- Modified
- 2025-08-09T20:01:26Z
- Severity
-
- 7.0 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
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
-
- 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
- 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/