Security update for putty (moderate)

ID OPENSUSE-SU-2019:1123-1
Type suse
Reporter Suse
Modified 2019-04-02T21:09:57


This update for putty fixes the following issues:

Update to new upstream release 0.71 [boo#1129633]

  • CVE-2019-9894: Fixed a remotely triggerable memory overwrite in RSA key exchange, which can occur before host key verification potential recycling of random numbers used in cryptography.
  • CVE-2019-9895: Fixed a remotely triggerable buffer overflow in any kind of server-to-client forwarding.
  • CVE-2019-9897: Fixed multiple denial-of-service attacks that can be triggered by writing to the terminal.
  • CVE-2019-9898: Fixed potential recycling of random numbers used in cryptography
  • CVE-2019-9896 (Windows only): Fixed hijacking by a malicious help file in the same directory as the executable
  • Major rewrite of the crypto code to remove cache and timing side channels.

This update was imported from the openSUSE:Leap:15.0:Update update project.