CVE-2017-6542

9.8 CRITICAL
Published: March 27, 2017 Modified: May 13, 2026
View on NVD

Description

The ssh_agent_channel_data function in PuTTY before 0.68 allows remote attackers to have unspecified impact via a large length value in an agent protocol message and leveraging the ability to connect to the Unix-domain socket representing the forwarded agent connection, which trigger a buffer overflow.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2017-03/msg00055.html
Source: cve@mitre.org
Third Party Advisory
http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-agent-fwd-overflow.html
Source: cve@mitre.org
Patch Vendor Advisory
http://www.securityfocus.com/bid/97156
Source: cve@mitre.org
Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1038067
Source: cve@mitre.org
https://git.tartarus.org/?p=simon/putty.git%3Ba=commitdiff%3Bh=4ff22863d895cb7ebfced4cf923a012a614adaa8
Source: cve@mitre.org
https://security.gentoo.org/glsa/201703-03
Source: cve@mitre.org
Third Party Advisory VDB Entry
https://security.gentoo.org/glsa/201706-09
Source: cve@mitre.org
https://www.exploit-db.com/exploits/42137/
Source: cve@mitre.org
http://lists.opensuse.org/opensuse-updates/2017-03/msg00055.html
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-agent-fwd-overflow.html
Source: af854a3a-2127-422b-91ae-364da2661108
Patch Vendor Advisory
http://www.securityfocus.com/bid/97156
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1038067
Source: af854a3a-2127-422b-91ae-364da2661108
https://git.tartarus.org/?p=simon/putty.git%3Ba=commitdiff%3Bh=4ff22863d895cb7ebfced4cf923a012a614adaa8
Source: af854a3a-2127-422b-91ae-364da2661108
https://security.gentoo.org/glsa/201703-03
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory VDB Entry
https://security.gentoo.org/glsa/201706-09
Source: af854a3a-2127-422b-91ae-364da2661108
https://www.exploit-db.com/exploits/42137/
Source: af854a3a-2127-422b-91ae-364da2661108

16 reference(s) from NVD

Quick Stats

CVSS v3 Score
9.8 / 10.0
EPSS (Exploit Probability)
21.8%
97th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

CWE-119

Affected Vendors

putty opensuse_project opensuse

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