National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2015-2157 Detail

Description

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.

Source:  MITRE      Last Modified:  03/27/2015

Quick Info

CVE Dictionary Entry:
CVE-2015-2157
Original release date:
03/27/2015
Last revised:
12/02/2016
Source:
US-CERT/NIST

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score:
2.1 LOW
Vector:
(AV:L/AC:L/Au:N/C:P/I:N/A:N) (legend)
Impact Subscore:
2.9
Exploitability Subscore:
3.9
CVSS Version 2 Metrics:
Access Vector:
Locally exploitable
Access Complexity:
Low
Authentication:
Not required to exploit
Impact Type:
Allows unauthorized disclosure of information

References to Advisories, Solutions, and Tools

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Hyperlink Resource Type Source Name
http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151790.html External Source FEDORA FEDORA-2015-3070
http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151839.html External Source FEDORA FEDORA-2015-3204
http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151933.html External Source FEDORA FEDORA-2015-3160
http://lists.opensuse.org/opensuse-updates/2015-03/msg00032.html External Source SUSE openSUSE-SU-2015:0474
http://www.chiark.greenend.org.uk/~sgtatham/putty/changes.html Patch; Vendor Advisory External Source CONFIRM http://www.chiark.greenend.org.uk/~sgtatham/putty/changes.html
http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/private-key-not-wiped-2.html Patch; Vendor Advisory External Source CONFIRM http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/private-key-not-wiped-2.html
http://www.debian.org/security/2015/dsa-3190 External Source DEBIAN DSA-3190
http://www.openwall.com/lists/oss-security/2015/02/28/4 External Source MLIST [oss-security] 20150228 CVE Request: PuTTY fails to clear private key information from memory
http://www.openwall.com/lists/oss-security/2015/02/28/5 External Source MLIST [oss-security] 20150228 Re: CVE Request: PuTTY fails to clear private key information from memory
http://www.securityfocus.com/bid/72825 External Source BID 72825

Technical Details

Vulnerability Type (View All)

  • Information Leak / Disclosure (CWE-200)

Change History 7 change records found - show changes