Vulnerability Details : CVE-2020-27484
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.
Vulnerability category: Overflow
Products affected by CVE-2020-27484
- cpe:2.3:o:garmin:forerunner_235_firmware:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-27484
0.24%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 64 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-27484
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.5
|
MEDIUM | AV:N/AC:L/Au:S/C:P/I:P/A:P |
8.0
|
6.4
|
NIST | |
|
9.9
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
3.1
|
6.0
|
NIST |
CWE ids for CVE-2020-27484
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The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-27484
-
https://github.com/atredispartners/advisories/blob/master/ATREDIS-2020-0004.md
advisories/ATREDIS-2020-0004.md at master · atredispartners/advisories · GitHubExploit;Third Party Advisory
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