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CVE-2017-6542

Good to know:

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Date: March 27, 2017

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.

Language: C++

Severity Score

Related Resources (12)

https://security.gentoo.org/glsa/201706-09
https://www.exploit-db.com/exploits/42137/
https://security.gentoo.org/glsa/201703-03
https://nvd.nist.gov/vuln/detail/CVE-2017-6542
https://git.tartarus.org/?p=simon/putty.git%3Ba=commitdiff%3Bh=4ff22863d895cb7ebfced4cf923a012a614adaa8
http://www.securitytracker.com/id/1038067
http://lists.opensuse.org/opensuse-updates/2017-03/msg00055.html
http://www.securityfocus.com/bid/97156
https://security-tracker.debian.org/tracker/CVE-2017-6542
http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-agent-fwd-overflow.html
https://people.canonical.com/~ubuntu-security/cve/CVE-2017-6542
https://www.mend.io/vulnerability-database/CVE-2017-6542

Severity Score

Weakness Type (CWE)

Buffer Errors

CWE-119

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): PARTIAL
Availability (A): PARTIAL
Additional information:

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