Vulnerability Name:

CVE-2015-2157 (CCN-101509)

Assigned:2015-02-28
Published:2015-02-28
Updated:2019-03-21
Summary: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.
CVSS v3 Severity:4.0 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): None
Availibility (A): None
CVSS v2 Severity:2.1 Low (CVSS v2 Vector: AV:L/AC:L/Au:N/C:P/I:N/A:N)
1.6 Low (Temporal CVSS v2 Vector: AV:L/AC:L/Au:N/C:P/I:N/A:N/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): None
2.1 Low (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:P/I:N/A:N)
1.6 Low (CCN Temporal CVSS v2 Vector: AV:L/AC:L/Au:N/C:P/I:N/A:N/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): None
Vulnerability Type:CWE-200
Vulnerability Consequences:Obtain Information
References:Source: MITRE
Type: CNA
CVE-2015-2157

Source: FEDORA
Type: UNKNOWN
FEDORA-2015-3070

Source: FEDORA
Type: UNKNOWN
FEDORA-2015-3204

Source: FEDORA
Type: UNKNOWN
FEDORA-2015-3160

Source: SUSE
Type: UNKNOWN
openSUSE-SU-2015:0474

Source: CCN
Type: oss-security Mailing List, Sat, 28 Feb 2015 12:38:01 +0000
CVE Request: PuTTY fails to clear private key information from memory

Source: CCN
Type: oss-security Mailing List, Sat, 28 Feb 2015 12:37:10 -0500 (EST)
Re: CVE Request: PuTTY fails to clear private key information from memory

Source: CONFIRM
Type: Patch, Vendor Advisory
http://www.chiark.greenend.org.uk/~sgtatham/putty/changes.html

Source: CCN
Type: greenend Web site
PuTTY vulnerability private-key-not-wiped-2

Source: CONFIRM
Type: Patch, Vendor Advisory
http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/private-key-not-wiped-2.html

Source: DEBIAN
Type: UNKNOWN
DSA-3190

Source: MLIST
Type: UNKNOWN
[oss-security] 20150228 CVE Request: PuTTY fails to clear private key information from memory

Source: MLIST
Type: UNKNOWN
[oss-security] 20150228 Re: CVE Request: PuTTY fails to clear private key information from memory

Source: BID
Type: UNKNOWN
72825

Source: XF
Type: UNKNOWN
putty-cve20152157-info-disc(101509)

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2015-2157

Vulnerable Configuration:Configuration 1:
  • cpe:/o:debian:debian_linux:7.0:*:*:*:*:*:*:*
  • OR cpe:/o:fedoraproject:fedora:20:*:*:*:*:*:*:*
  • OR cpe:/o:fedoraproject:fedora:22:*:*:*:*:*:*:*
  • OR cpe:/o:opensuse:opensuse:13.1:*:*:*:*:*:*:*
  • OR cpe:/o:opensuse:opensuse:13.2:*:*:*:*:*:*:*

    • Configuration 2:
  • cpe:/a:putty:putty:0.51:*:*:*:*:*:*:*
  • OR cpe:/a:putty:putty:0.52:*:*:*:*:*:*:*
  • OR cpe:/a:putty:putty:0.53b:*:*:*:*:*:*:*
  • OR cpe:/a:putty:putty:0.54:*:*:*:*:*:*:*
  • OR cpe:/a:putty:putty:0.55:*:*:*:*:*:*:*
  • OR cpe:/a:putty:putty:0.56:*:*:*:*:*:*:*
  • OR cpe:/a:putty:putty:0.57:*:*:*:*:*:*:*
  • OR cpe:/a:putty:putty:0.58:*:*:*:*:*:*:*
  • OR cpe:/a:putty:putty:0.59:*:*:*:*:*:*:*
  • OR cpe:/a:putty:putty:0.60:*:*:*:*:*:*:*
  • OR cpe:/a:putty:putty:0.61:*:*:*:*:*:*:*
  • OR cpe:/a:putty:putty:0.62:*:*:*:*:*:*:*
  • OR cpe:/a:putty:putty:0.63:*:*:*:*:*:*:*
  • OR cpe:/a:putty:putty:0.53:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:putty:putty:0.63:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:20152157
    V
    		CVE-2015-2157
    2022-06-30
    oval:org.opensuse.security:def:113184
    P
    		putty-0.67-1.5 on GA media (Moderate)
    2022-01-17
    oval:org.opensuse.security:def:106605
    P
    		putty-0.67-1.5 on GA media (Moderate)
    2021-10-01
    oval:org.cisecurity:def:154
    P
    		DSA-3190-1 -- putty -- security update
    2016-02-08
    oval:com.ubuntu.precise:def:20152157000
    V
    		CVE-2015-2157 on Ubuntu 12.04 LTS (precise) - low.
    2015-03-27
    oval:com.ubuntu.trusty:def:20152157000
    V
    		CVE-2015-2157 on Ubuntu 14.04 LTS (trusty) - low.
    2015-03-27
    oval:com.ubuntu.xenial:def:201521570000000
    V
    		CVE-2015-2157 on Ubuntu 16.04 LTS (xenial) - low.
    2015-03-27
    oval:com.ubuntu.xenial:def:20152157000
    V
    		CVE-2015-2157 on Ubuntu 16.04 LTS (xenial) - low.
    2015-03-27
    BACK
    debian debian linux 7.0
    fedoraproject fedora 20
    fedoraproject fedora 22
    opensuse opensuse 13.1
    opensuse opensuse 13.2
    putty putty 0.51
    putty putty 0.52
    putty putty 0.53b
    putty putty 0.54
    putty putty 0.55
    putty putty 0.56
    putty putty 0.57
    putty putty 0.58
    putty putty 0.59
    putty putty 0.60
    putty putty 0.61
    putty putty 0.62
    putty putty 0.63
    simon_tatham putty 0.53
    putty putty 0.63