Ubuntu 4203-2: NSS vulnerability

    Date27 Nov 2019
    CategoryUbuntu
    344
    Posted ByLinuxSecurity Advisories
    NSS could be made to crash or run programs if it received specially crafted input.
    ==========================================================================
    Ubuntu Security Notice USN-4203-2
    November 27, 2019
    
    nss vulnerability
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 14.04 ESM
    - Ubuntu 12.04 ESM
    
    Summary:
    
    NSS could be made to crash or run programs if it received specially crafted
    input.
    
    Software Description:
    - nss: Network Security Service library
    
    Details:
    
    USN-4203-1 fixed a vulnerability in NSS. This update provides
    the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.
    
    Original advisory details:
    
     It was discovered that NSS incorrectly handled certain memory operations. A
     remote attacker could use this issue to cause NSS to crash, resulting in a
     denial of service, or possibly execute arbitrary code.
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 14.04 ESM:
      libnss3                         2:3.28.4-0ubuntu0.14.04.5+esm2
    
    Ubuntu 12.04 ESM:
      libnss3                         2:3.28.4-0ubuntu0.12.04.5
    
    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/4203-2
      https://usn.ubuntu.com/4203-1
      CVE-2019-11745
    
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