Buffer overflow when handling ASCII characters in OpenSSL - CVE-2002-0655

 

Buffer overflow when handling ASCII characters in OpenSSL - CVE-2002-0655

Published: July 7, 2016 / Updated: August 1, 2016


Vulnerability identifier: #VU100
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2002-0655
CWE-ID: CWE-787
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: OpenSSL Software Foundation
Affected software:
OpenSSL

Detailed vulnerability description

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

The vulnerability exists due to improper handling of ASCII representations of integers on 64-bit platforms. A remote unauthenticated attacker can cause a denial of service or possible arbitrary code execution.

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


How to mitigate CVE-2002-0655

Apply the attached patch to OpenSSL 0.9.6d, or upgrade to OpenSSL 0.9.6e.
A patch for 0.9.7 is available from the OpenSSL website:

https://www.openssl.org/

Sources