Vulnerability Description
Garmin Forerunner 235 before 8.20 is affected by: Array index error. 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 trusts the offset provided for the stack value duplication instruction, DUP. The offset is unchecked and memory prior to the start of the execution stack can be read and treated as a TVM object. A successful exploit could use the vulnerability to leak runtime information such as the heap handle or pointer for a number of TVM context variables. Some reachable values may be controlled enough to forge a TVM object on the stack, leading to possible remote code execution.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Garmin | Forerunner 235 Firmware | >= 7.90, < 8.20 |
| Garmin | Forerunner 235 | - |
Related Weaknesses (CWE)
References
- https://github.com/atredispartners/advisories/blob/master/ATREDIS-2020-0007.mdExploitThird Party Advisory
- https://github.com/atredispartners/advisories/blob/master/ATREDIS-2020-0007.mdExploitThird Party Advisory
FAQ
What is CVE-2020-27483?
CVE-2020-27483 is a vulnerability with a CVSS score of 9.9 (CRITICAL). Garmin Forerunner 235 before 8.20 is affected by: Array index error. The component is: ConnectIQ TVM. The attack vector is: To exploit the vulnerability, the attacker must upload a malicious ConnectIQ...
How severe is CVE-2020-27483?
CVE-2020-27483 has been rated CRITICAL with a CVSS base score of 9.9/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2020-27483?
Check the references section above for vendor advisories and patch information. Affected products include: Garmin Forerunner 235 Firmware, Garmin Forerunner 235.