Ubuntu 3850-2: NSS vulnerabilities

    Date18 Feb 2019
    CategoryUbuntu
    3002
    Posted ByLinuxSecurity Advisories
    Several security issues were fixed in NSS.
    ==========================================================================
    Ubuntu Security Notice USN-3850-2
    February 18, 2019
    
    nss vulnerabilities
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 12.04 ESM
    
    Summary:
    
    Several security issues were fixed in NSS.
    
    Software Description:
    - nss: Network Security Service library
    
    Details:
    
    USN-3850-1 fixed several vulnerabilities in NSS. This update provides
    the corresponding update for Ubuntu 12.04 ESM.
    
    Original advisory details:
    
     Keegan Ryan discovered that NSS incorrectly handled ECDSA key
     generation. A local attacker could possibly use this issue to perform
     a cache-timing attack and recover private ECDSA keys. (CVE-2018-0495)
    
     It was discovered that NSS incorrectly handled certain v2-compatible
     ClientHello messages. A remote attacker could possibly use this issue
     to perform a replay attack. (CVE-2018-12384)
    
     It was discovered that NSS incorrectly handled certain padding
     oracles. A remote attacker could possibly use this issue to perform a
     variant of the Bleichenbacher attack. (CVE-2018-12404)
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 12.04 ESM:
      libnss3                         2:3.28.4-0ubuntu0.12.04.2
    
    After a standard system update you need to restart any applications
    that use NSS, such as Evolution, to make all the necessary changes.
    
    References:
      https://usn.ubuntu.com/usn/usn-3850-2
      https://usn.ubuntu.com/usn/usn-3850-1
      CVE-2018-0495, CVE-2018-12384, CVE-2018-12404
    
    You are not authorised to post comments.

    LinuxSecurity Poll

    What is your favorite LinuxSecurity.com feature?

    No answer selected. Please try again.
    Please select either existing option or enter your own, however not both.
    Please select minimum 0 answer(s) and maximum 3 answer(s).
    /component/communitypolls/?task=poll.vote
    17
    radio
    [{"id":"65","title":"Feature articles","votes":"0","type":"x","order":"1","pct":0,"resources":[]},{"id":"66","title":"News","votes":"0","type":"x","order":"2","pct":0,"resources":[]},{"id":"67","title":"HOWTOs","votes":"0","type":"x","order":"3","pct":0,"resources":[]}]["#ff5b00","#4ac0f2","#b80028","#eef66c","#60bb22","#b96a9a","#62c2cc"]["rgba(255,91,0,0.7)","rgba(74,192,242,0.7)","rgba(184,0,40,0.7)","rgba(238,246,108,0.7)","rgba(96,187,34,0.7)","rgba(185,106,154,0.7)","rgba(98,194,204,0.7)"]350
    bottom200

    We use cookies to provide and improve our services. By using our site, you consent to our Cookie Policy.