Ubuntu 2165-1: OpenSSL vulnerabilities

    Date07 Apr 2014
    Posted ByLinuxSecurity Advisories
    OpenSSL could be made to expose sensitive information over the network, possibly including private keys.
    Ubuntu Security Notice USN-2165-1
    April 07, 2014
    openssl vulnerabilities
    A security issue affects these releases of Ubuntu and its derivatives:
    - Ubuntu 13.10
    - Ubuntu 12.10
    - Ubuntu 12.04 LTS
    OpenSSL could be made to expose sensitive information over the network,
    possibly including private keys.
    Software Description:
    - openssl: Secure Socket Layer (SSL) cryptographic library and tools
    Neel Mehta discovered that OpenSSL incorrectly handled memory in the TLS
    heartbeat extension. An attacker could use this issue to obtain up to 64k
    of memory contents from the client or server, possibly leading to the
    disclosure of private keys and other sensitive information. (CVE-2014-0160)
    Yuval Yarom and Naomi Benger discovered that OpenSSL incorrectly handled
    timing during swap operations in the Montgomery ladder implementation. An
    attacker could use this issue to perform side-channel attacks and possibly
    recover ECDSA nonces. (CVE-2014-0076)
    Update instructions:
    The problem can be corrected by updating your system to the following
    package versions:
    Ubuntu 13.10:
      libssl1.0.0                     1.0.1e-3ubuntu1.2
    Ubuntu 12.10:
      libssl1.0.0                     1.0.1c-3ubuntu2.7
    Ubuntu 12.04 LTS:
      libssl1.0.0                     1.0.1-4ubuntu5.12
    After a standard system update you need to reboot your computer to make all
    the necessary changes. Since this issue may have resulted in compromised
    private keys, it is recommended to regenerate them.
      CVE-2014-0076, CVE-2014-0160
    Package Information:
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