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