CVE-2020-27484
Garmin Forerunner 235 before 8.20 is affected by: Integer Overflow.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.77%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 9.9 CRITICALCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- EPSS
- 1.77% probability · 77th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-190
- Affected
- garmin/forerunner 235 firmware
- Source
- cve@mitre.org
References
- https://github.com/atredispartners/advisories/blob/master/ATREDIS-2020-0004.mdExploit, Third Party Advisory
- https://github.com/atredispartners/advisories/blob/master/ATREDIS-2020-0004.mdExploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.