CVE-2018-12435

Botan 2.5.0 through 2.6.0 before 2.7.0 allows a memory-cache side-channel attack on ECDSA signatures, aka the Return Of the Hidden Number Problem or ROHNP…

published June 15, 2018

CVSS
—
EPSS
0%
Percentile
41.3
In the wild
Unconfirmed
What it is

Botan 2.5.0 through 2.6.0 before 2.7.0 allows a memory-cache side-channel attack on ECDSA signatures, aka the Return Of the Hidden Number Problem or ROHNP, related to dsa/dsa.cpp, ec_group/ec_group.cpp, and ecdsa/ecdsa.cpp. To discover an ECDSA key, the attacker needs access to either the local machine or a different virtual machine on the same physical host.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.00492 · 41.3th percentile
Published
2018-06-15T02:00Z
EPSS history
Timeline
  • 15 JUN 02:00Z
    Botan 2.5.0 through 2.6.0 before 2.7.0 allows a memory-cache side-channel attack on ECDSA signatures, aka the Return Of the Hidden Number Problem or ROHNP…
    cvelistv5