Linux Kernel up to 5.7 8250_core.c serial8250_isa_init_ports null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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3.7$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in Linux Kernel up to 5.7. The impacted element is the function serial8250_isa_init_ports of the file drivers/tty/serial/8250/8250_core.c. The manipulation results in null pointer dereference. This vulnerability is reported as CVE-2020-15437. The attack requires a local approach. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Linux Kernel up to 5.7 (Operating System). It has been classified as problematic. Affected is the function serial8250_isa_init_ports of the file drivers/tty/serial/8250/8250_core.c. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. This is going to have an impact on availability.

The weakness was disclosed 11/24/2020. The advisory is available at lkml.org. This vulnerability is traded as CVE-2020-15437. Technical details are known, but there is no available exploit.

Upgrading to version 5.8 eliminates this vulnerability.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.8
VulDB Meta Temp Score: 3.8

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.4
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 5.8

Timelineinfo

06/30/2020 🔍
11/24/2020 +147 days 🔍
11/24/2020 +0 days 🔍
12/10/2020 +16 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: lkml.org
Status: Confirmed

CVE: CVE-2020-15437 (🔍)
GCVE (CVE): GCVE-0-2020-15437
GCVE (VulDB): GCVE-100-165282

Entryinfo

Created: 11/24/2020 07:51
Updated: 12/10/2020 03:38
Changes: 11/24/2020 07:51 (41), 12/10/2020 03:35 (5), 12/10/2020 03:38 (18)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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