ASN.1 parser deallocation buffer overflow in OpenSSL - CVE-2003-0545

 

ASN.1 parser deallocation buffer overflow in OpenSSL - CVE-2003-0545

Published: August 1, 2016


Vulnerability identifier: #VU247
CSH Severity: Critical
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:Red
CVE-ID: CVE-2003-0545
CWE-ID: CWE-119
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 in OpenSSL. A remote unauthenticated attacker can cause a denial of service and possible arbitrary code execution via an SSL client certificate with a certain invalid ASN.1 encoding.

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

How to mitigate CVE-2003-0545

Upgrade your version to OpenSSL 0.9.7c.

Sources