CVE-2018-21058 is a critical vulnerability affecting Samsung mobile devices running Android N (7.0) and O (8.0) with Exynos 7420, 8890, or 8996 chipsets. It stems from a cache attack against the Keymaster AES-GCM implementation due to the use of T-Tables instead of the Cryptography Extension. This vulnerability has a CVSS score of 9.8 (Critical), indicating a high potential for complete compromise of confidentiality, integrity, and availability with low attack complexity and no user interaction required. Despite its severity, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
7.0CPE matchmatch criteria | cpe:2.3:o:google:android:7.0:*:*:*:*:*:*:* | ||
8.0CPE matchmatch criteria | cpe:2.3:o:google:android:8.0:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.