zephyrproject-rtos Zephyr up to 3.6 LL_CONNECTION_UPDATE_IND Packet null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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6.8$0-$5k0.00

Summaryinfo

A vulnerability was found in zephyrproject-rtos Zephyr up to 3.6. It has been rated as problematic. This issue affects some unknown processing of the component LL_CONNECTION_UPDATE_IND Packet Handler. This manipulation causes null pointer dereference. This vulnerability is handled as CVE-2024-4785. The attack can only be done within the local network. There is not any exploit available.

Detailsinfo

A vulnerability was found in zephyrproject-rtos Zephyr up to 3.6. It has been declared as critical. Affected by this vulnerability is an unknown function of the component LL_CONNECTION_UPDATE_IND Packet Handler. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

BT: Missing Check in LL_CONNECTION_UPDATE_IND Packet Leads to Division by Zero

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2024-4785 since 05/10/2024. The exploitation appears to be easy. The attack needs to approached within the local network. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2024-44378). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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Vendor

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 6.8

VulDB Base Score: 6.3
VulDB Temp Score: 6.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CNA Base Score: 7.6
CNA Vector (zephyr): 🔍

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: Partially

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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

05/10/2024 🔍
08/20/2024 +102 days 🔍
08/20/2024 +0 days 🔍
09/17/2025 +393 days 🔍

Sourcesinfo

Product: github.com

Advisory: GHSA-xcr5-5g98-mchp
Status: Confirmed

CVE: CVE-2024-4785 (🔍)
GCVE (CVE): GCVE-0-2024-4785
GCVE (VulDB): GCVE-100-275191
EUVD: 🔍

Entryinfo

Created: 08/20/2024 07:32
Updated: 09/17/2025 11:22
Changes: 08/20/2024 07:32 (63), 08/21/2024 04:47 (1), 02/04/2025 07:51 (12), 09/17/2025 11:22 (1)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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