CVE-2015-2157

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.

• CWE-200

• http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151790.html
• http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151839.html
• http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151933.html
• http://lists.opensuse.org/opensuse-updates/2015-03/msg00032.html
• http://www.chiark.greenend.org.uk/~sgtatham/putty/changes.htmlPatch, Vendor Advisory
• http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/private-key-not-wiped-2.htmlPatch, Vendor Advisory
• http://www.debian.org/security/2015/dsa-3190
• http://www.openwall.com/lists/oss-security/2015/02/28/4
• http://www.openwall.com/lists/oss-security/2015/02/28/5
• http://www.securityfocus.com/bid/72825
• http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151790.html
• http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151839.html
• http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151933.html
• http://lists.opensuse.org/opensuse-updates/2015-03/msg00032.html
• http://www.chiark.greenend.org.uk/~sgtatham/putty/changes.htmlPatch, Vendor Advisory
• http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/private-key-not-wiped-2.htmlPatch, Vendor Advisory
• http://www.debian.org/security/2015/dsa-3190
• http://www.openwall.com/lists/oss-security/2015/02/28/4
• http://www.openwall.com/lists/oss-security/2015/02/28/5
• http://www.securityfocus.com/bid/72825

Published

Mar 27, 2015

Last Modified

Jun 17, 2026

Status

Modified

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