Silabs Micrium OS Network HTTP Server up to 4.4.1 on ARM null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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7.3$0-$5k0.00

Summaryinfo

A vulnerability was found in Silabs Micrium OS Network HTTP Server up to 4.4.1 on ARM. It has been rated as problematic. The affected element is an unknown function. The manipulation leads to null pointer dereference. This vulnerability is documented as CVE-2023-51391. The attack can be initiated remotely. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Silabs Micrium OS Network HTTP Server up to 4.4.1 on ARM. It has been rated as critical. This issue affects an unknown function. The manipulation with an unknown input leads to a null pointer dereference vulnerability. Using CWE to declare the problem leads to 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. Impacted is availability. The summary by CVE is:

A bug in Micrium OS Network HTTP Server permits an invalid pointer dereference during header processing - potentially allowing a device crash and Denial of Service.

The advisory is shared at community.silabs.com. The identification of this vulnerability is CVE-2023-51391 since 12/18/2023. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available.

Upgrading to version 4.4.2 eliminates this vulnerability.

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Productinfo

Type

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 7.5
CNA Vector (Silicon Labs): 🔍

CVSSv2info

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

Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

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: Micrium OS Network HTTP Server 4.4.2

Timelineinfo

12/18/2023 🔍
04/16/2024 +119 days 🔍
04/16/2024 +0 days 🔍
05/23/2024 +37 days 🔍

Sourcesinfo

Advisory: community.silabs.com
Status: Confirmed

CVE: CVE-2023-51391 (🔍)
GCVE (CVE): GCVE-0-2023-51391
GCVE (VulDB): GCVE-100-260981

Entryinfo

Created: 04/16/2024 22:04
Updated: 05/23/2024 18:55
Changes: 04/16/2024 22:04 (64), 05/23/2024 18:55 (1)
Complete: 🔍
Cache ID: 216::103

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