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CVE-2017-6542 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:9.8 CRITICALVector: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

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URL	Source(s)	Tag(s)
http://lists.opensuse.org/opensuse-updates/2017-03/msg00055.html	CVE	Third Party Advisory
https://git.tartarus.org/?p=simon/putty.git%3Ba=commitdiff%3Bh=4ff22863d895cb7ebfced4cf923a012a614adaa8	CVE
https://security.gentoo.org/glsa/201703-03	CVE	Third Party AdvisoryVDB Entry
https://security.gentoo.org/glsa/201706-09	CVE
https://www.exploit-db.com/exploits/42137/	CVE
http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-agent-fwd-overflow.html	CVE	PatchVendor Advisory
http://www.securityfocus.com/bid/97156	CVE	Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1038067	CVE
http://lists.opensuse.org/opensuse-updates/2017-03/msg00055.html	[email protected]	Third Party Advisory
https://git.tartarus.org/?p=simon/putty.git%3Ba=commitdiff%3Bh=4ff22863d895cb7ebfced4cf923a012a614adaa8	[email protected]
https://security.gentoo.org/glsa/201703-03	[email protected]	Third Party AdvisoryVDB Entry
https://security.gentoo.org/glsa/201706-09	[email protected]
https://www.exploit-db.com/exploits/42137/	[email protected]
http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-agent-fwd-overflow.html	[email protected]	PatchVendor Advisory
http://www.securityfocus.com/bid/97156	[email protected]	Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1038067	[email protected]

see all 16 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-119	Improper Restriction of Operations within the Bounds of a Memory Buffer	[email protected]

Affected Products

Product	Versions
putty putty	<= 0.67
CPE cpe:2.3:a:putty:putty:::::::: Remediation No remediation found in references.
opensuse leap	42.2
CPE cpe:2.3:o:opensuse:leap:42.2:::::::* Remediation No remediation found in references.
opensuse project leap	42.1
CPE cpe:2.3:o:opensuse_project:leap:42.1:::::::* Remediation No remediation found in references.

Change History

11 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
May 13, 2026	CVE Status Change	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Nov 7, 2023	CVE Modified	[email protected]
Oct 30, 2018	CPE Deprecation Remap	[email protected]
Aug 13, 2017	CVE Modified	[email protected]
Jul 12, 2017	CVE Modified	[email protected]
Jul 1, 2017	CVE Modified	[email protected]
Mar 31, 2017	Initial Analysis	[email protected]
Mar 30, 2017	CVE Modified	[email protected]

CVE-2017-6542 Details

Description

Metrics

References to Advisories, Solutions, and Tools

Weakness Enumeration

Affected Products

CPE

Remediation

CPE

Remediation

CPE

Remediation

Change History

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