It was found that the GnuTLS implementation of HMAC-SHA-256 was vulnerable to a Lucky thirteen style attack. Remote attackers could use this flaw to conduct distinguishing attacks and plaintext-recovery attacks via statistical analysis of timing data using crafted packets.
| Version | Score | Severity | Vector String |
|---|---|---|---|
| 3.0 | 5.9 | Medium | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N |
| Product | Vendor | Version |
|---|---|---|
| gnutls | [UNKNOWN] | <= 0.1.12 |