{"id":"UBUNTU-CVE-2015-2157","details":"The (1) ssh2_load_userkey and (2) ssh2_save_userkey functions in PuTTY 0.51 through 0.63 do not properly wipe SSH-2 private keys from memory, which allows local users to obtain sensitive information by reading the memory.","modified":"2025-09-08T16:43:20Z","published":"2015-03-27T14:59:00Z","upstream":["CVE-2015-2157"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2015-2157"},{"type":"REPORT","url":"http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/private-key-not-wiped-2.html"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2015-2157"}],"affected":[{"package":{"name":"putty","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/putty@0.63-4ubuntu0.1?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.63-4ubuntu0.1"}]}],"versions":["0.63-1","0.63-2","0.63-3","0.63-4"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"0.63-4ubuntu0.1","binary_name":"pterm"},{"binary_name":"putty","binary_version":"0.63-4ubuntu0.1"},{"binary_version":"0.63-4ubuntu0.1","binary_name":"putty-tools"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2015/UBUNTU-CVE-2015-2157.json"}}],"schema_version":"1.7.3","severity":[{"type":"Ubuntu","score":"low"}]}