Improper input validation in OpenSSL - CVE-2003-0851

 

Improper input validation in OpenSSL - CVE-2003-0851

Published: August 1, 2016 / Updated: November 22, 2018


Vulnerability identifier: #VU246
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2003-0851
CWE-ID: CWE-20
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 cause OpenSSL to crash.

The vulnerability exists due to a large recursion that cannot be handled correctly. A remote unauthenticated attacker can cause OpenSSL to crash by sending arbitrary ASN.1 sequences.

Successful exploitation of this vulnerability may result in a denial of service.

How to mitigate CVE-2003-0851

Upgrade your version to OpenSSL 0.9.6l.

Sources