CVE-2018-12439
NONE EPSS 19.3%
Published Jun 15, 20188y ago · Modified Jun 17, 20262w ago
Published Jun 15, 2018 8y ago
Last Modified Jun 17, 2026 2w ago
Description
MatrixSSL through 3.9.5 Open allows a memory-cache side-channel attack on ECDSA signatures, aka the Return Of the Hidden Number Problem or ROHNP. To discover an ECDSA key, the attacker needs access to either the local machine or a different virtual machine on the same physical host.
Threat Intelligence
EPSS Exploit Probability
19.3% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-200 Exposure of Sensitive Information to an Unauthorized Actor Information Exposure
Affected Products 1
| Vendor | Product | Version | Range |
|---|---|---|---|
| matrixssl | matrixssl | * | ≤3.9.5 |
References 1
- nccgroup.trust https://www.nccgroup.trust/us/our-research/technical-advisory-return-of-the-hidden-number-problem/
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.