ArchLinux: 202002-8: systemd: privilege escalation

    Date 17 Feb 2020
    Posted By LinuxSecurity Advisories
    The package systemd before version 244.2-1 is vulnerable to privilege escalation.
    Arch Linux Security Advisory ASA-202002-8
    Severity: High
    Date    : 2020-02-12
    CVE-ID  : CVE-2020-1712
    Package : systemd
    Type    : privilege escalation
    Remote  : No
    Link    :
    The package systemd before version 244.2-1 is vulnerable to privilege
    Upgrade to 244.2-1.
    # pacman -Syu "systemd>=244.2-1"
    The problem has been fixed upstream in version 244.2.
    A heap use-after-free vulnerability was found in systemd before version
    244.2, where asynchronous Polkit queries are performed while handling
    dbus messages. A local unprivileged attacker can abuse this flaw to
    crash systemd services or potentially execute code and elevate their
    privileges, by sending specially crafted dbus messages.
    A local unprivileged attacker is able to crash the system or execute
    arbitrary code as root by abusing polkit caching mechanisms.

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