What is the severity of CVE-2016-2563?

CVE-2016-2563 has been classified as a medium severity vulnerability due to the potential for remote code execution and denial of service.

How do I fix CVE-2016-2563?

To fix CVE-2016-2563, update to PuTTY version 0.67 or later and KiTTY version 0.66.6.4 or later.

What systems are affected by CVE-2016-2563?

CVE-2016-2563 affects PuTTY versions prior to 0.67 and KiTTY versions 0.66.6.3 and earlier.

What type of vulnerability is CVE-2016-2563?

CVE-2016-2563 is a stack-based buffer overflow vulnerability.

What can attackers achieve through CVE-2016-2563?

Attackers can exploit CVE-2016-2563 to cause stack memory corruption and potentially execute arbitrary code.

Vulnerability/
CVE-2016-2563

critical

9.8

CWE

119

7/4/2016

5/8/2024

CVE-2016-2563: Buffer Overflow

First published: Thu Apr 07 2016(Updated: )

Stack-based buffer overflow in the SCP command-line utility in PuTTY before 0.67 and KiTTY 0.66.6.3 and earlier allows remote servers to cause a denial of service (stack memory corruption) or execute arbitrary code via a crafted SCP-SINK file-size response to an SCP download request.

Credit: cve@mitre.org

Affected Software	Affected Version	How to fix
9bis KiTTY	<=0.66.6.3
PuTTY	<=0.66

Remedy

http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-pscp-sink-sscanf.html

Never miss a vulnerability like this again

Reference Links

Frequently Asked Questions

What is the severity of CVE-2016-2563?
CVE-2016-2563 has been classified as a medium severity vulnerability due to the potential for remote code execution and denial of service.
How do I fix CVE-2016-2563?
To fix CVE-2016-2563, update to PuTTY version 0.67 or later and KiTTY version 0.66.6.4 or later.
What systems are affected by CVE-2016-2563?
CVE-2016-2563 affects PuTTY versions prior to 0.67 and KiTTY versions 0.66.6.3 and earlier.
What type of vulnerability is CVE-2016-2563?
CVE-2016-2563 is a stack-based buffer overflow vulnerability.
What can attackers achieve through CVE-2016-2563?
Attackers can exploit CVE-2016-2563 to cause stack memory corruption and potentially execute arbitrary code.

agent/type
agent/softwarecombine
agent/remedy
agent/severity
agent/author
agent/weakness
agent/references
agent/description
collector/mitre-cve
source/MITRE
agent/last-modified-date
agent/first-publish-date
agent/event
agent/source
agent/tags
collector/nvd-index
agent/software-canonical-lookup-request
vendor/9bis
canonical/9bis kitty
version/9bis kitty/0.66.6.3
vendor/simon tatham
canonical/putty
version/putty/0.66

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Frequently Asked Questions

What is the severity of CVE-2016-2563?
CVE-2016-2563 has been classified as a medium severity vulnerability due to the potential for remote code execution and denial of service.
How do I fix CVE-2016-2563?
To fix CVE-2016-2563, update to PuTTY version 0.67 or later and KiTTY version 0.66.6.4 or later.
What systems are affected by CVE-2016-2563?
CVE-2016-2563 affects PuTTY versions prior to 0.67 and KiTTY versions 0.66.6.3 and earlier.
What type of vulnerability is CVE-2016-2563?
CVE-2016-2563 is a stack-based buffer overflow vulnerability.
What can attackers achieve through CVE-2016-2563?
Attackers can exploit CVE-2016-2563 to cause stack memory corruption and potentially execute arbitrary code.