CVE-2020-27484 Integer overflow in n/a
A malicious ConnectIQ app can exploit an integer overflow to escape the sandbox and execute arbitrary code on the device.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-27484?
CVE-2020-27484 is a critical vulnerability in n/a, published on 16 Nov 2020. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Weakness: CWE-190
Which versions are affected by CVE-2020-27484?
It affects 1 product.
Products include Garmin Forerunner 235 Firmware.
How do I fix CVE-2020-27484?
No fix has been published for CVE-2020-27484 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-27484 being exploited?
There is no known exploitation of CVE-2020-27484 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-q449-r33x-v693.