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.
{ "nvd_published_at": "2023-03-30T01:15:00Z", "cwe_ids": [ "CWE-203", "CWE-208" ], "severity": "MODERATE", "github_reviewed": true, "github_reviewed_at": "2023-04-07T19:23:01Z" }