Back to Database
Status published
Critical
CVE-2017-6542
The ssh_agent_channel_data function in PuTTY before 0.68 allows remote attackers...
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
THREAT MONITOR
Am I Vulnerable?
Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2017-6542
Credits & Attribution
No credits recorded in the NVD database.
References
- http://www.securityfocus.com/bid/97156
- https://www.exploit-db.com/exploits/42137/
- https://security.gentoo.org/glsa/201703-03
- https://git.tartarus.org/?p=simon/putty.git%3Ba=commitdiff%3Bh=4ff22863d895cb7ebfced4cf923a012a614adaa8
- http://www.securitytracker.com/id/1038067
- http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-agent-fwd-overflow.html
- http://lists.opensuse.org/opensuse-updates/2017-03/msg00055.html
- https://security.gentoo.org/glsa/201706-09
More from putty
View All →CVE-2021-36367
PuTTY through 0.75 proceeds with establishing an SSH session even...
Unknown
0
CVE-2021-33500
PuTTY before 0.75 on Windows allows remote servers to cause...
High
7.5
CVE-2020-14002
PuTTY 0.68 through 0.73 has an Observable Discrepancy leading to...
Medium
5.9
CVE-2019-9898
Potential recycling of random numbers used in cryptography exists within...
Critical
9.8
CVE-2019-9897
Multiple denial-of-service attacks that can be triggered by writing to...
High
7.5
Affected Vendor
putty
View all reports →Affected Software
putty, leap
Vulnerable Versions:
0, 42.2, 42.1
Timeline
Official Publish:
March 27th, 2017
Last Modified:
August 5th, 2024
Added to House:
July 20th, 2026
CVSS Vectors
V3:
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.