Ubuntu 4297-1: runC vulnerabilities

    Date 09 Mar 2020
    Posted By LinuxSecurity Advisories
    Several security issues were fixed in runc.
    Ubuntu Security Notice USN-4297-1
    March 09, 2020
    runc vulnerabilities
    A security issue affects these releases of Ubuntu and its derivatives:
    - Ubuntu 19.10
    - Ubuntu 18.04 LTS
    Several security issues were fixed in runc.
    Software Description:
    - runc: Open Container Project
    It was discovered that runC incorrectly checked mount targets. An attacker
    with a malicious container image could possibly mount over the /proc
    directory and escalate privileges. This issue only affected Ubuntu 18.04
    LTS. (CVE-2019-16884)
    It was discovered that runC incorrectly performed access control. An
    attacker could possibly use this issue to escalate privileges.
    Update instructions:
    The problem can be corrected by updating your system to the following
    package versions:
    Ubuntu 19.10:
      runc                            1.0.0~rc10-0ubuntu1~19.10.2
    Ubuntu 18.04 LTS:
      runc                            1.0.0~rc10-0ubuntu1~18.04.2
    In general, a standard system update will make all the necessary changes.
      CVE-2019-16884, CVE-2019-19921
    Package Information:

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