CVE-2018-12434
Medium
Description
LibreSSL before 2.6.5 and 2.7.x before 2.7.4 allows a memory-cache side-channel attack on DSA and ECDSA signatures, aka the Return Of the Hidden Number Problem or ROHNP. To discover a key, the attacker needs access to either the local machine or a different virtual machine on the same physical host.
SeverityMedium
CVSS4.7
Exploit probability25. percentile0.3%
ProductOpenbsd Libressl
PublishedJun 15, 2018
First seenJun 15, 2018
How to fix
Update
- openbsd libressl2.6.5 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| openbsd libressl | v < 2.6.5, 2.7.0, 2.7.1, 2.7.2, 2.7.3 | 2.6.5 |
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