CVE-2018-12434 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 attacke...
MediumCVSS 4.7
EPSS 0.32%
- Published
- Updated
- Exploit status
- No public exploit known
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.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| OpenBSD libressl | < 2.6.5 | 2.6.5 |
| OpenBSD libressl | = 2.7.0 | No fix listed |
| OpenBSD libressl | = 2.7.1 | No fix listed |
| OpenBSD libressl | = 2.7.2 | No fix listed |
| OpenBSD libressl | = 2.7.3 | No fix listed |
References
- ftp.openbsd.org vendor-advisory
- ftp.openbsd.org vendor-advisory
- www.nccgroup.trust third-party-advisory