Botan 2.5.0 up to and including 2.6.0 prior to 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.
| Vulnerable Product | Search on Vulmon | Subscribe to Product |
|---|---|---|
botan project botan |
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