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 fails to check the index provided when accessing the local variable in the LGETV and LPUTV instructions. This provides the ability to both read and write memory outside the bounds of the TVM context allocation. It can be leveraged to construct a use-after-free scenario, leading to 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.
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-2020-0005.mdExploitThird Party Advisory
- https://github.com/atredispartners/advisories/blob/master/ATREDIS-2020-0005.mdExploitThird Party Advisory
FAQ
What is CVE-2020-27485?
CVE-2020-27485 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-2020-27485?
CVE-2020-27485 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-2020-27485?
Check the references section above for vendor advisories and patch information. Affected products include: Garmin Forerunner 235 Firmware, Garmin Forerunner 235.