CVE-2017-5334: GNU Gnutls

Critical severity, CVSS 9.8. EPSS: 32.8% chance of exploitation in the next 30 days.

Double free vulnerability in the gnutls_x509_ext_import_proxy function in GnuTLS before 3.3.26 and 3.5.x before 3.5.8 allows remote attackers to have unspecified impact via crafted policy language information in an X.509 certificate with a Proxy Certificate Information extension.

Affected products

• GNU Gnutls: up to and including 3.3.25; version 3.5.0 only; version 3.5.1 only; version 3.5.2 only; version 3.5.3 only; version 3.5.4 only; …
• Opensuse Leap: version 42.1 only; version 42.2 only

Published 2017-03-24. Last modified 2026-06-17.