CVSS 3.1
4.9 mediumCVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:NCVE-2018-12438
The Elliptic Curve Cryptography library (aka sunec or libsunec) 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.
Severity
- EPSS
- 0.5% chance of exploitation in the next 30 days; higher than 39% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-200, CWE-320
- Published
- Modified
- Record from
- the NVD, synced
Affected
- libsunec_project:libsunec