CVE-2018-12439 describes a memory-cache side-channel vulnerability in MatrixSSL versions through 3.9.5, allowing for an ECDSA key recovery attack known as the Return Of the Hidden Number Problem (ROHNP). This vulnerability has a CVSS score of 4.7 (Medium), indicating a local attack vector with high attack complexity, requiring an attacker to have access to the local machine or a different virtual machine on the same physical host to achieve high confidentiality impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 3.9.5CPE matchmatch criteria | cpe:2.3:a:matrixssl:matrixssl:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.4 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.