CVE-2021-4202

CVSS V2 Medium 6.9 CVSS V3 High 7
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.
Overview
  • CVE ID
  • CVE-2021-4202
  • Assigner
  • secalert@redhat.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2022-03-25T19:15:09
  • Last Modified Date
  • 2022-10-06T02:25:36
Weakness Enumerations
CWE URL
CWE-362 http://cwe.mitre.org/data/definitions/362.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 1 OR 5.16
cpe:2.3:o:linux:linux_kernel:5.16:-:*:*:*:*:*:* 1 OR
cpe:2.3:o:linux:linux_kernel:5.16:rc1:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:L/AC:M/Au:N/C:C/I:C/A:C
  • Access Vector
  • LOCAL
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • COMPLETE
  • Integrity Impact
  • COMPLETE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 6.9
  • Severity
  • MEDIUM
  • Exploitability Score
  • 3.4
  • Impact Score
  • 10
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  • Attack Vector
  • LOCAL
  • Attack Compatibility
  • HIGH
  • Privileges Required
  • LOW
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 7
  • Base Severity
  • HIGH
  • Exploitability Score
  • 1
  • Impact Score
  • 5.9
References
Reference URL Reference Tags
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
https://bugzilla.redhat.com/show_bug.cgi?id=2036682 Issue Tracking Patch Third Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=3e3b5dfcd16a3e254aab61bd1e8c417dd4503102 Exploit Patch Vendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=48b71a9e66c2eab60564b1b1c85f4928ed04e406 Exploit Patch Vendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=86cdf8e38792545161dbe3350a7eced558ba4d15 Exploit Patch Vendor Advisory
https://security.netapp.com/advisory/ntap-20220513-0002/ Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-4202
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-4202
History
Created Old Value New Value Data Type Notes
2022-04-04 00:41:55 Added to TrackCVE
2022-12-06 13:18:27 2022-03-25T19:15Z 2022-03-25T19:15:09 CVE Published Date updated
2022-12-06 13:18:27 2022-10-06T02:25:36 CVE Modified Date updated
2022-12-06 13:18:27 Analyzed Vulnerability Status updated
2022-12-06 13:18:32 References updated