CVE-2020-27485
Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
16/11/2020
Last modified:
02/12/2020
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.
Impact
Base Score 3.x
9.90
Severity 3.x
CRITICAL
Base Score 2.0
6.50
Severity 2.0
MEDIUM
Vulnerable products and versions
| CPE | From | Up to |
|---|---|---|
| cpe:2.3:o:garmin:forerunner_235_firmware:*:*:*:*:*:*:*:* | 7.90 (including) | 8.20 (excluding) |
| cpe:2.3:h:garmin:forerunner_235:-:*:*:*:*:*:*:* |
To consult the complete list of CPE names with products and versions, see this page