Vulnerability Details : CVE-2018-21086
An issue was discovered on Samsung mobile devices with L(5.x), M(6.0), and N(7.x) software. There is a race condition with a resultant double free in vnswap_init_backing_storage. The Samsung ID is SVE-2017-11177 (February 2018).
Vulnerability category: Memory Corruption
Products affected by CVE-2018-21086
- cpe:2.3:o:google:android:5.1.1:*:*:*:*:*:*:*
- cpe:2.3:o:google:android:5.0.2:*:*:*:*:*:*:*
- cpe:2.3:o:google:android:6.0:*:*:*:*:*:*:*
- cpe:2.3:o:google:android:5.0:*:*:*:*:*:*:*
- cpe:2.3:o:google:android:5.0.1:*:*:*:*:*:*:*
- cpe:2.3:o:google:android:5.1:*:*:*:*:*:*:*
- cpe:2.3:o:google:android:5.1.0:*:*:*:*:*:*:*
- cpe:2.3:o:google:android:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:google:android:7.1.2:*:*:*:*:*:*:*
- cpe:2.3:o:google:android:7.1.0:*:*:*:*:*:*:*
- cpe:2.3:o:google:android:7.1.1:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-21086
0.11%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 27 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-21086
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:P |
8.6
|
6.4
|
NIST | |
|
8.1
|
HIGH | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
2.2
|
5.9
|
NIST |
CWE ids for CVE-2018-21086
-
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.Assigned by: nvd@nist.gov (Primary)
-
The product calls free() twice on the same memory address.Assigned by: nvd@nist.gov (Primary)
References for CVE-2018-21086
-
https://security.samsungmobile.com/securityUpdate.smsb
Android Security Updates Details | Samsung Mobile SecurityVendor Advisory
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