CVE-2023-25000 Information

Description

HashiCorp Vault’s implementation of Shamir’s secret sharing used precomputed table lookups and was vulnerable to cache-timing attacks. An attacker with access to and the ability to observe a large number of unseal operations on the host through a side channel may reduce the search space of a brute force effort to recover the Shamir shares. Fixed in Vault 1.13.1 1.12.5 and 1.11.9.

Reference

https://discuss.hashicorp.com/t/hcsec-2023-10-vault-vulnerable-to-cache-timing-attacks-during-seal-and-unseal-operations/52078