GHSA-vq4h-9ghm-qmrr HashiCorp Vault's implementation of Shamir's secret sharing vulnerable to cache-timing attacks

• Go github.com/hashicorp/vault: < 1.11.9 → fixed in 1.11.9 • Go github.com/hashicorp/vault: >= 1.12.0, < 1.12.5 → fixed in 1.12.5 • Go github.com/hashicorp/vault: >= 1.13.0, < 1.13.1 → fixed in 1.13.1

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.