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[email protected]CVE-2020-15437

HistoryNov 23, 2020 - 9:15 p.m.

CVE-2020-15437

2020-11-2321:15:11

CWE-476

[email protected]

web.nvd.nist.gov

180

linux kernel

vulnerability

null pointer

serial8250_isa_init_ports

nvd

cve-2020-15437

4.9 Medium

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

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

4.4 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

5.5 Medium

AI Score

Confidence

Low

0.0004 Low

EPSS

Percentile

5.1%

JSON

The Linux kernel before version 5.8 is vulnerable to a NULL pointer dereference in drivers/tty/serial/8250/8250_core.c:serial8250_isa_init_ports() that allows local users to cause a denial of service by using the p->serial_in pointer which uninitialized.

Affected configurations

NVD

Node

linuxlinux_kernelRange<5.8

CPENameOperatorVersion
linux:linux_kernellinux linux kernellt5.8

CPE	Name	Operator	Version
linux:linux_kernel	linux linux kernel	lt	5.8

CNA Affected

[
  {
    "product": "linux kernel",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "5.7 (verified), possibly others 4.18"
      }
    ]
  }
]