CVE-2018-12435
Medium
Description
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.
SeverityMedium
CVSS5.9
Exploit probability—
ProductBotan
PublishedJun 15, 2018
First seenJun 15, 2018
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| botan_project botan | 2.5.0 ≤ v ≤ 2.7.0 | — |
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