Heap-based buffer overflow in Simon Tatham products - CVE-2013-4852

CSH
CYBERSECURITY HELP
Sign In REGISTER
 
Main Vulnerability Database Vulnerabilities #VU42653

Heap-based buffer overflow in Simon Tatham products - CVE-2013-4852

Published: August 20, 2013 / Updated: August 10, 2020


Vulnerability identifier: #VU42653
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2013-4852
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: winscp.sourceforge.net
Debian
SUSE
Simon Tatham
Affected software:
WinSCP
Debian Linux
Opensuse
PuTTY

Detailed vulnerability description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in Integer overflow in PuTTY 0.62 and earlier, WinSCP before 5.1.6, and other products that use PuTTY. A remote attacker can use a negative size value in an RSA key signature during the SSH handshake to trigger heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


How to mitigate CVE-2013-4852

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Sources