ROHNP: Memory-Cache Side-Channel Attack on ECDSA Signatures

CVE-2018-12437 · MEDIUM Severity

CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N

LibTomCrypt through 1.18.1 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.

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