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RHSA-2014:1053: openssl security update

Severity CVSS Published Added Modified
5 (AV:N/AC:L/Au:N/C:N/I:N/A:P) August 13, 2014 August 22, 2014 July 04, 2017

Description

OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL),Transport Layer Security (TLS), and Datagram Transport Layer Security(DTLS) protocols, as well as a full-strength, general purpose cryptographylibrary.It was discovered that the OBJ_obj2txt() function could fail to properlyNUL-terminate its output. This could possibly cause an application usingOpenSSL functions to format fields of X.509 certificates to discloseportions of its memory. (CVE-2014-3508)Multiple flaws were discovered in the way OpenSSL handled DTLS packets.A remote attacker could use these flaws to cause a DTLS server or clientusing OpenSSL to crash or use excessive amounts of memory. (CVE-2014-0221,CVE-2014-3505, CVE-2014-3506)A NULL pointer dereference flaw was found in the way OpenSSL performed ahandshake when using the anonymous Diffie-Hellman (DH) key exchange. Amalicious server could cause a DTLS client using OpenSSL to crash if thatclient had anonymous DH cipher suites enabled. (CVE-2014-3510)Red Hat would like to thank the OpenSSL project for reportingCVE-2014-0221. Upstream acknowledges Imre Rad of Search-Lab as the originalreporter of this issue.All OpenSSL users are advised to upgrade to these updated packages, whichcontain backported patches to correct these issues. For the update to takeeffect, all services linked to the OpenSSL library (such as httpd and otherSSL-enabled services) must be restarted or the system rebooted.

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References

Solution

redhat-upgrade-openssl

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