openSUSE Security Update: Security update for putty ______________________________________________________________________________
Announcement ID: openSUSE-SU-2019:1113-1 Rating: moderate References: #1129633 Cross-References: CVE-2019-9894 CVE-2019-9895 CVE-2019-9896 CVE-2019-9897 CVE-2019-9898 Affected Products: openSUSE Leap 15.0 ______________________________________________________________________________
An update that fixes 5 vulnerabilities is now available.
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.
To install this openSUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:
- openSUSE Leap 15.0:
zypper in -t patch openSUSE-2019-1113=1
- openSUSE Leap 15.0 (x86_64):
putty-0.71-lp150.9.1 putty-debuginfo-0.71-lp150.9.1 putty-debugsource-0.71-lp150.9.1
https://www.suse.com/security/cve/CVE-2019-9894.html https://www.suse.com/security/cve/CVE-2019-9895.html https://www.suse.com/security/cve/CVE-2019-9896.html https://www.suse.com/security/cve/CVE-2019-9897.html https://www.suse.com/security/cve/CVE-2019-9898.html https://bugzilla.suse.com/1129633