The MITRE CVE dictionary describes this issue as:
The Cryptographic Message Syntax (CMS) implementation in crypto/cms/cms_asn1.c in OpenSSL before 0.9.8o and 1.x before 1.0.0a does not properly handle structures that contain OriginatorInfo, which allows context-dependent attackers to modify invalid memory locations or conduct double-free attacks, and possibly execute arbitrary code, via unspecified vectors.
Find out more about CVE-2010-0742 from the
MITRE CVE dictionary dictionary and
Not vulnerable. These issues did not affect the versions of OpenSSL as shipped with Red Hat Enterprise Linux 3, 4, or 5.