Ubuntu 1451-1: OpenSSL vulnerabilities

    Date24 May 2012
    Posted ByLinuxSecurity Advisories
    Applications using OpenSSL in certain situations could be made tocrash or expose sensitive information.
    Ubuntu Security Notice USN-1451-1
    May 24, 2012
    openssl vulnerabilities
    A security issue affects these releases of Ubuntu and its derivatives:
    - Ubuntu 12.04 LTS
    - Ubuntu 11.10
    - Ubuntu 11.04
    - Ubuntu 10.04 LTS
    - Ubuntu 8.04 LTS
    Applications using OpenSSL in certain situations could be made to
    crash or expose sensitive information.
    Software Description:
    - openssl: Secure Socket Layer (SSL) cryptographic library and tools
    Ivan Nestlerode discovered that the Cryptographic Message Syntax
    (CMS) and PKCS #7 implementations in OpenSSL returned early if RSA
    decryption failed. This could allow an attacker to expose sensitive
    information via a Million Message Attack (MMA). (CVE-2012-0884)
    It was discovered that an integer underflow was possible when using
    TLS 1.1, TLS 1.2, or DTLS with CBC encryption. This could allow a
    remote attacker to cause a denial of service. (CVE-2012-2333)
    Update instructions:
    The problem can be corrected by updating your system to the following
    package versions:
    Ubuntu 12.04 LTS:
      libssl1.0.0                     1.0.1-4ubuntu5.2
      openssl                         1.0.1-4ubuntu5.2
    Ubuntu 11.10:
      libssl1.0.0                     1.0.0e-2ubuntu4.6
      openssl                         1.0.0e-2ubuntu4.6
    Ubuntu 11.04:
      libssl0.9.8                     0.9.8o-5ubuntu1.7
      openssl                         0.9.8o-5ubuntu1.7
    Ubuntu 10.04 LTS:
      libssl0.9.8                     0.9.8k-7ubuntu8.13
      openssl                         0.9.8k-7ubuntu8.13
    Ubuntu 8.04 LTS:
      libssl0.9.8                     0.9.8g-4ubuntu3.19
      openssl                         0.9.8g-4ubuntu3.19
    After a standard system update you need to reboot your computer to make
    all the necessary changes.
      CVE-2012-0884, CVE-2012-2333
    Package Information:
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