Linux Security
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    Ubuntu 4279-2: PHP regression

    Date 19 Feb 2020
    406
    Posted By LinuxSecurity Advisories
    USN-4279-1 introduced a regression in PHP.
    ==========================================================================
    Ubuntu Security Notice USN-4279-2
    February 19, 2020
    
    php7.0 regression
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 16.04 LTS
    
    Summary:
    
    USN-4279-1 introduced a regression in PHP.
    
    Software Description:
    - php7.0: HTML-embedded scripting language interpreter
    
    Details:
    
    USN-4279-1 fixed vulnerabilities in PHP. The updated packages caused a regression.
    This update fixes the problem.
    
    We apologize for the inconvenience.
    
    Original advisory details:
    
     It was discovered that PHP incorrectly handled certain scripts.
     An attacker could possibly use this issue to cause a denial of service.
     This issue only affected Ubuntu 12.04 ESM, Ubuntu 14.04 ESM and Ubuntu 16.04 LTS.
     (CVE-2015-9253)
     
     It was discovered that PHP incorrectly handled certain inputs. An attacker
     could possibly use this issue to expose sensitive information.
     (CVE-2020-7059)
     
     It was discovered that PHP incorrectly handled certain inputs.
     An attacker could possibly use this issue to execute arbitrary code.
     This issue only affected Ubuntu 14.04 ESM, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS
     and Ubuntu 19.10. (CVE-2020-7060)
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 16.04 LTS:
      libapache2-mod-php7.0           7.0.33-0ubuntu0.16.04.12
      php7.0-cgi                      7.0.33-0ubuntu0.16.04.12
      php7.0-cli                      7.0.33-0ubuntu0.16.04.12
      php7.0-fpm                      7.0.33-0ubuntu0.16.04.12
    
    In general, a standard system update will make all the necessary changes.
    
    References:
      https://usn.ubuntu.com/4279-2
      https://usn.ubuntu.com/4279-1
      CVE-2015-9253
    
    Package Information:
      https://launchpad.net/ubuntu/+source/php7.0/7.0.33-0ubuntu0.16.04.12
    

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