RHEL 3 / 4 : openssl096b (RHSA-2010:0173)
Critical Nessus Plugin ID 46280
SynopsisThe remote Red Hat host is missing a security update.
DescriptionUpdated openssl096b packages that fix one security issue are now available for Red Hat Enterprise Linux 3 and 4.
The Red Hat Security Response Team has rated this update as having important security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.
OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL v2/v3) and Transport Layer Security (TLS v1) protocols, as well as a full-strength, general purpose cryptography library.
It was discovered that OpenSSL did not always check the return value of the bn_wexpand() function. An attacker able to trigger a memory allocation failure in that function could cause an application using the OpenSSL library to crash or, possibly, execute arbitrary code.
All openssl096b users should upgrade to these updated packages, which contain a backported patch to resolve this issue. For the update to take effect, all programs using the openssl096b library must be restarted.
SolutionUpdate the affected openssl096b package.