Linux Security
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    Ubuntu 4616-2: AccountsService vulnerabilities

    Date 04 Nov 2020
    Posted By LinuxSecurity Advisories
    Several security issues were fixed in AccountsService.
    Ubuntu Security Notice USN-4616-2
    November 04, 2020
    accountsservice vulnerabilities
    A security issue affects these releases of Ubuntu and its derivatives:
    - Ubuntu 14.04 ESM
    Several security issues were fixed in AccountsService.
    Software Description:
    - accountsservice: query and manipulate user account information
    USN-4616-1 fixed several vulnerabilities in AccountsService. This update provides
    the corresponding update for Ubuntu 14.04 ESM.
    Original advisory details:
     Kevin Backhouse discovered that AccountsService incorrectly dropped
     privileges. A local user could possibly use this issue to cause
     AccountsService to crash or hang, resulting in a denial of service.
     Matthias Gerstner discovered that AccountsService incorrectly handled
     certain path checks. A local attacker could possibly use this issue to
     read arbitrary files. (CVE-2018-14036)
    Update instructions:
    The problem can be corrected by updating your system to the following
    package versions:
    Ubuntu 14.04 ESM:
      accountsservice                 0.6.35-0ubuntu7.3+esm2
      libaccountsservice0             0.6.35-0ubuntu7.3+esm2
    After a standard system update you need to reboot your computer to make
    all the necessary changes.
      CVE-2018-14036, CVE-2020-16126


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