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[email protected]CVE-2021-23134

HistoryMay 12, 2021 - 11:15 p.m.

CVE-2021-23134

2021-05-1223:15:07

CWE-416

[email protected]

web.nvd.nist.gov

299

cve-2021-23134

use after free

nfc sockets

linux kernel

privilege escalation

security vulnerability

nvd

4.6 Medium

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:L/Au:N/C:P/I:P/A:P

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

7.4 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

5.1%

JSON

Use After Free vulnerability in nfc sockets in the Linux Kernel before 5.12.4 allows local attackers to elevate their privileges. In typical configurations, the issue can only be triggered by a privileged local user with the CAP_NET_RAW capability.

Affected configurations

NVD

Node

linuxlinux_kernelRange<5.12.4

Node

fedoraprojectfedoraMatch33

fedoraprojectfedoraMatch34

Node

debiandebian_linuxMatch9.0

CPENameOperatorVersion
linux:linux_kernellinux linux kernellt5.12.4

CPE	Name	Operator	Version
linux:linux_kernel	linux linux kernel	lt	5.12.4

CNA Affected

[
  {
    "product": "Linux Kernel",
    "vendor": "Linux Kernel",
    "versions": [
      {
        "lessThan": "5.12.4",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]