HttpClient is an HTTP/1.1 compliant HTTP agent implementation based on httpcomponents HttpCore. It was discovered that the HttpClient incorrectly extracted host name from an X.509 certificate subject"s Common Name field. A man-in-the-middle attacker could use this flaw to spoof an SSL server using a specially crafted X.509 certificate. For additional information on this flaw, refer to the Knowledgebase article in the References section. All httpcomponents-client users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. 4. Solution: Before applying this update, make sure all previously released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/articles/11258 5. Bugs fixed : 1129074 - CVE-2014-3577 Apache HttpComponents client: SSL hostname verification bypass, incomplete CVE-2012-6153 fix 6. Package List: Red Hat Enterprise Linux Client Optional : Source: httpcomponents-client-4.2.5-5.el7_0.src.rpm noarch: httpcomponents-client-4.2.5-5.el7_0.noarch.rpm httpcomponents-client-javadoc-4.2.5-5.el7_0.noarch.rpm Red Hat Enterprise Linux ComputeNode Optional : Source: httpcomponents-client-4.2.5-5.el7_0.src.rpm noarch: httpcomponents-client-4.2.5-5.el7_0.noarch.rpm httpcomponents-client-javadoc-4.2.5-5.el7_0.noarch.rpm Red Hat Enterprise Linux Server : Source: httpcomponents-client-4.2.5-5.el7_0.src.rpm noarch: httpcomponents-client-4.2.5-5.el7_0.noarch.rpm Red Hat Enterprise Linux Server Optional : Source: httpcomponents-client-4.2.5-5.el7_0.src.rpm noarch: httpcomponents-client-4.2.5-5.el7_0.noarch.rpm httpcomponents-client-javadoc-4.2.5-5.el7_0.noarch.rpm Red Hat Enterprise Linux Workstation : Source: httpcomponents-client-4.2.5-5.el7_0.src.rpm noarch: httpcomponents-client-4.2.5-5.el7_0.noarch.rpm Red Hat Enterprise Linux Workstation Optional : noarch: httpcomponents-client-javadoc-4.2.5-5.el7_0.noarch.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/#package 7. References: https://www.redhat.com/security/data/cve/CVE-2014-3577.html https://access.redhat.com/security/updates/classification/#important