Qualcomm Snapdragon Auto Preemption null pointer dereference

EntryeditHistoryDiffjsonxmlCTI
CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.4$0-$5k0.00

A vulnerability has been found in Qualcomm Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT and Snapdragon Wearables (Chip Software) and classified as critical. This vulnerability affects an unknown functionality of the component Preemption. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-476. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Null pointer dereference occurs due to improper validation when the preemption feature enablement is toggled in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Wearables

The weakness was presented 09/17/2021. The advisory is shared for download at qualcomm.com. This vulnerability was named CVE-2021-1939 since 12/08/2020. The exploitation appears to be easy. The attack can be initiated remotely. The successful exploitation needs a single authentication. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 09/22/2021).

Upgrading eliminates this vulnerability.

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CPE 2.3infoedit

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CVSSv3infoedit

VulDB Meta Base Score: 8.6
VulDB Meta Temp Score: 8.4

VulDB Base Score: 8.8
VulDB Temp Score: 8.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 8.4
CNA Vector (Qualcomm, Inc.): 🔒

CVSSv2infoedit

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfoedit

Class: Denial of service
CWE: CWE-476
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfoedit

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

Countermeasuresinfoedit

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: qualcomm.com

Timelineinfoedit

12/08/2020 CVE assigned
09/17/2021 +282 days Advisory disclosed
09/17/2021 +0 days VulDB entry created
09/22/2021 +5 days VulDB last update

Sourcesinfoedit

Vendor: https://www.qualcomm.com/

Advisory: qualcomm.com
Status: Confirmed
Confirmation: 🔒

CVE: CVE-2021-1939 (🔒)

Entryinfoedit

Created: 09/17/2021 12:39 PM
Updated: 09/22/2021 01:32 PM
Changes: (2) advisory_confirm_url source_cve_nvd_summary
Complete: 🔍

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