Ubuntu Security Notice (C) 2013-2015 Canonical, Inc. / NASL script (C) 2013-2015 Tenable Network Security, Inc.
The remote Ubuntu host is missing a security-related patch.
USN-1732-1 fixed vulnerabilities in OpenSSL. The fix for CVE-2013-0169
and CVE-2012-2686 was reverted in USN-1732-2 because of a regression.
This update restores the security fix, and includes an extra fix from
upstream to address the AES-NI regression. We apologize for the
Adam Langley and Wolfgang Ettlingers discovered that OpenSSL
incorrectly handled certain crafted CBC data when used with AES-NI. 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 and Ubuntu 12.10. (CVE-2012-2686)
Nadhem Alfardan and Kenny Paterson discovered that the TLS
protocol as used in OpenSSL was vulnerable to a timing
side-channel attack known as the 'Lucky Thirteen' issue. A
remote attacker could use this issue to perform
plaintext-recovery attacks via analysis of timing data.
Update the affected libssl1.0.0 package.
Risk factor :
Medium / CVSS Base Score : 5.0
CVSS Temporal Score : 4.3
Public Exploit Available : false