USN-2232-2

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USN-2232-2

Summary: openssl regression

Details: USN-2232-1 fixed vulnerabilities in OpenSSL. The upstream fix for CVE-2014-0224 caused a regression for certain applications that use tls_session_secret_cb, such as wpa_supplicant. This update fixes the problem. Original advisory details: Jüri Aedla discovered that OpenSSL incorrectly handled invalid DTLS fragments. A remote attacker could use this issue to cause OpenSSL to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 12.04 LTS, Ubuntu 13.10, and Ubuntu 14.04 LTS. (CVE-2014-0195) Imre Rad discovered that OpenSSL incorrectly handled DTLS recursions. A remote attacker could use this issue to cause OpenSSL to crash, resulting in a denial of service. (CVE-2014-0221) KIKUCHI Masashi discovered that OpenSSL incorrectly handled certain handshakes. A remote attacker could use this flaw to perform a machine-in-the-middle attack and possibly decrypt and modify traffic. (CVE-2014-0224) Felix Gröbert and Ivan Fratrić discovered that OpenSSL incorrectly handled anonymous ECDH ciphersuites. A remote attacker could use this issue to cause OpenSSL to crash, resulting in a denial of service. This issue only affected Ubuntu 12.04 LTS, Ubuntu 13.10, and Ubuntu 14.04 LTS. (CVE-2014-3470)

References: https://ubuntu.com/security/notices/USN-2232-2, https://launchpad.net/bugs/1329297