openSUSE-SU-2026:20851-1

This update for putty fixes the following issues:

Changes in putty:

• Update to release 0.84
  • Fixed a remotely triggerable double-free in RSA key exchange.
  • Fixed a remotely triggerable crash (assertion failure - program termination) in NIST ECDSA signature verification.
  • Fixed marking of Telnet and Rlogin session data with a trust sigil after you authenticated to a proxy (possibly allowing a server to spoof a repeat proxy password prompt).
  • New ability to run a specified command before starting the connection, e.g. to perform wake-on-LAN or a port knock.
  • Display 'pre-edit text', showing the progress of using multiple keystrokes to compose a single Unicode character.
  • Improved support for to running the GUI tools on Wayland (fixed startup issues and tuned performance).
  • Configuring a SSH certificate authority used to fail unless you manually made a config directory, now fixed.
  • Fixed a spurious "Network error: Socket is not connected" when authenticating to some HTTP proxies.