What is the severity of CVE-2020-27484?

CVE-2020-27484 is classified as a moderate severity vulnerability due to its potential impact through integer overflow.

How do I fix CVE-2020-27484?

To fix CVE-2020-27484, update the Garmin Forerunner 235 firmware to version 8.20 or later.

What components are affected by CVE-2020-27484?

CVE-2020-27484 affects the ConnectIQ TVM component in Garmin Forerunner 235 firmware versions prior to 8.20.

What is the attack vector for CVE-2020-27484?

The attack vector for CVE-2020-27484 involves uploading a malicious ConnectIQ application to the ConnectIQ store.

What is the nature of the vulnerability in CVE-2020-27484?

CVE-2020-27484 is an integer overflow vulnerability that allows an attacker to exploit the ConnectIQ program interpreter.

Vulnerability/
CVE-2020-27484

critical

9.9

CWE

190

16/11/2020

4/8/2024

CVE-2020-27484: Integer Overflow

First published: Mon Nov 16 2020(Updated: )

Garmin Forerunner 235 before 8.20 is affected by: Integer Overflow. The component is: ConnectIQ TVM. The attack vector is: To exploit the vulnerability, the attacker must upload a malicious ConnectIQ application to the ConnectIQ store. The ConnectIQ program interpreter fails to check for overflow when allocating the array for the NEWA instruction. This a constrained read/write primitive across the entire MAX32630 address space. A successful exploit would allow a ConnectIQ app store application to escape and perform activities outside the restricted application execution environment.

Credit: cve@mitre.org

Affected Software	Affected Version	How to fix
Garmin Forerunner 235 Firmware	>=7.90<8.20
Garmin Forerunner 235 Firmware

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Reference Links

https://github.com/atredispartners/advisories/blob/master/ATREDIS-2020-0004.md

Frequently Asked Questions

What is the severity of CVE-2020-27484?
CVE-2020-27484 is classified as a moderate severity vulnerability due to its potential impact through integer overflow.
How do I fix CVE-2020-27484?
To fix CVE-2020-27484, update the Garmin Forerunner 235 firmware to version 8.20 or later.
What components are affected by CVE-2020-27484?
CVE-2020-27484 affects the ConnectIQ TVM component in Garmin Forerunner 235 firmware versions prior to 8.20.
What is the attack vector for CVE-2020-27484?
The attack vector for CVE-2020-27484 involves uploading a malicious ConnectIQ application to the ConnectIQ store.
What is the nature of the vulnerability in CVE-2020-27484?
CVE-2020-27484 is an integer overflow vulnerability that allows an attacker to exploit the ConnectIQ program interpreter.

agent/type
agent/softwarecombine
collector/mitre-cve
source/MITRE
agent/last-modified-date
agent/severity
agent/weakness
agent/references
agent/author
agent/description
agent/first-publish-date
agent/event
agent/source
agent/tags
collector/nvd-index
agent/software-canonical-lookup-request
vendor/garmin
canonical/garmin forerunner 235 firmware
version/garmin forerunner 235 firmware/7.90

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