VULNERABILITY INTELLIGENCE

CVE-2018-12433

CVSS score4.9 MEDIUM
EPSS probability0.35%
CISA KEVNot currently listed
Published2018-06-15
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N

Description

cryptlib through 3.4.4 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. NOTE: the vendor does not include side-channel attacks within its threat model

Weakness classification

  • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

Primary references