CVE-2021-25394
- EPSS 0.93%
- Published 11.06.2021 15:15:08
- Last modified 14.02.2025 16:32:02
- Source mobile.security@samsung.com
- Teams watchlist Login
- Open Login
A use after free vulnerability via race condition in MFC charger driver prior to SMR MAY-2021 Release 1 allows arbitrary write given a radio privilege is compromised.
29.06.2023: CISA Known Exploited Vulnerabilities (KEV) Catalog
Samsung Mobile Devices Race Condition Vulnerability
VulnerabilitySamsung mobile devices contain a race condition vulnerability within the MFC charger driver that leads to a use-after-free allowing for a write given a radio privilege is compromised.
DescriptionApply updates per vendor instructions or discontinue use of the product if updates are unavailable
Required actions| Type | Source | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 0.93% | 0.739 |
| Source | Base Score | Exploit Score | Impact Score | Vector string |
|---|---|---|---|---|
| nvd@nist.gov | 6.4 | 0.5 | 5.9 |
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
|
| nvd@nist.gov | 4.4 | 3.4 | 6.4 |
AV:L/AC:M/Au:N/C:P/I:P/A:P
|
| mobile.security@samsung.com | 6.4 | 0.5 | 5.9 |
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
|
The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.