9.8crit
CVE-2018-21058
An issue was discovered on Samsung mobile devices with N(7.0), O(8.0) (exynos7420 or Exynos 8890/8996 chipsets) software.
Published 6 y ago · modified 4 mo ago · JSON
CVSS
9.8
v3.1 · NVD
CISA KEV
No
not known exploited
EPSS
0.3%
percentile 20%
Public exploits
0
none known
Summary
An issue was discovered on Samsung mobile devices with N(7.0), O(8.0) (exynos7420 or Exynos 8890/8996 chipsets) software. Cache attacks can occur against the Keymaster AES-GCM implementation because T-Tables are used; the Cryptography Extension (CE) is not used. The Samsung ID is SVE-2018-12761 (September 2018).
Exploit prediction (EPSS)
0.27% probability of exploitation in the next 30 days, higher than 20% of all scored CVEs.
CVSS scores
| Assigned by | Version | Score | Vector |
|---|---|---|---|
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
Classification
- Weakness
- CWE-327 Use of a Broken or Risky Cryptographic Algorithm
References
- security.samsungmobile.com /securityUpdate.smsb · x_refsource_CONFIRM, x_transferred
Sources
- CVE List: CVE-2018-21058
- NVD: CVE-2018-21058
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