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Medium severity4.7NVD Advisory· Published Jun 15, 2018· Updated Jun 17, 2026

CVE-2018-12439

CVE-2018-12439

Description

MatrixSSL through 3.9.5 Open 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.

Affected products

3
  • Matrixssl/Matrixssl3 versions
    cpe:2.3:a:matrixssl:matrixssl:*:*:*:*:*:*:*:*+ 2 more
    • cpe:2.3:a:matrixssl:matrixssl:*:*:*:*:*:*:*:*range: <=3.9.5
    • (no CPE)range: <=3.9.5
    • (no CPE)range: <=3.9.5

Patches

Vulnerability mechanics

References

1

News mentions

0

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