GnuTLS -- multiple vulnerabilities

Daiki Ueno reports:

• libgnutls: Fix heap read buffer overrun in parsing X.509 SCTS timestamps Spotted by oss-fuzz and reported by OpenAI Security Research Team, and fix developed by Andrew Hamilton. [GNUTLS-SA-2025-07-07-1, CVSS: medium] [CVE-2025-32989]
• libgnutls: Fix double-free upon error when exporting otherName in SAN Reported by OpenAI Security Research Team. [GNUTLS-SA-2025-07-07-2, CVSS: low] [CVE-2025-32988]
• certtool: Fix 1-byte write buffer overrun when parsing template Reported by David Aitel. [GNUTLS-SA-2025-07-07-3, CVSS: low] [CVE-2025-32990]
• libgnutls: Fix NULL pointer dereference when 2nd Client Hello omits PSK Reported by Stefan Bühler. [GNUTLS-SA-2025-07-07-4, CVSS: medium] [CVE-2025-6395]

[source]