CVE-2017-6542

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.

CVSS v3.0 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3.0 : CRITICAL

Vector : AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://security.gentoo.org/glsa/201703-03	Third Party Advisory VDB Entry
https://git.tartarus.org/?p=simon/putty.git;a=commitdiff;h=4ff22863d895cb7ebfced4cf923a012a614adaa8	Patch Third Party Advisory
http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-agent-fwd-overflow.html	Patch Vendor Advisory
http://lists.opensuse.org/opensuse-updates/2017-03/msg00055.html	Third Party Advisory
http://www.securityfocus.com/bid/97156	Third Party Advisory VDB Entry
https://security.gentoo.org/glsa/201706-09
http://www.securitytracker.com/id/1038067
https://www.exploit-db.com/exploits/42137/

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Configurations

Configuration 1 (hide)

cpe:2.3:a:putty:putty:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:o:opensuse_project:leap:42.1:::::::*
	cpe:2.3:o:opensuse:leap:42.2:::::::*

Information

Published : 2017-03-27 10:59

Updated : 2018-10-30 09:27

NVD link : CVE-2017-6542

Mitre link : CVE-2017-6542

JSON object : View

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

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Products Affected

opensuse

leap

opensuse_project

leap

putty

putty

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