Vulnerability Description
Garmin Forerunner 235 before 8.20 is affected by: Buffer 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 trusts the string length provided in the data section of the PRG file. It allocates memory for the string immediately, and then copies the string into the TVM object by using a function similar to strcpy. This copy can exceed the length of the allocated string data and overwrite heap data. 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-2020-0006.mdExploitThird Party Advisory
- https://github.com/atredispartners/advisories/blob/master/ATREDIS-2020-0006.mdExploitThird Party Advisory
FAQ
What is CVE-2020-27486?
CVE-2020-27486 is a vulnerability with a CVSS score of 9.9 (CRITICAL). Garmin Forerunner 235 before 8.20 is affected by: Buffer Overflow. The component is: ConnectIQ TVM. The attack vector is: To exploit the vulnerability, the attacker must upload a malicious ConnectIQ a...
How severe is CVE-2020-27486?
CVE-2020-27486 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-2020-27486?
Check the references section above for vendor advisories and patch information. Affected products include: Garmin Forerunner 235 Firmware, Garmin Forerunner 235.