A flaw was found in GnuTLS. The gnutls_pkcs11_token_set_pin function, used for changing the Security Officer PIN, can lead to a use-after-free vulnerability. This occurs when an attacker attempts to change the PIN with a NULL old PIN for a token that lacks a protected authentication path.
Exploitability
AV:LAC:LPR:LUI:NScope
S:UImpact
C:LI:LA:H6.6/CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:HOther