Jann Horn discovered that pam_systemd created logind sessions using some parameters from the environment. A local attacker could exploit this in order to spoof the active session and gain additional PolicyKit privileges.
{ "availability": "No subscription required", "binaries": [ { "binary_version": "1:204-5ubuntu20.31", "binary_name": "gir1.2-gudev-1.0" }, { "binary_version": "1:204-5ubuntu20.31", "binary_name": "libgudev-1.0-0" }, { "binary_version": "1:204-5ubuntu20.31", "binary_name": "libgudev-1.0-0-dbgsym" }, { "binary_version": "1:204-5ubuntu20.31", "binary_name": "libgudev-1.0-dev" }, { "binary_version": "204-5ubuntu20.31", "binary_name": "libpam-systemd" }, { "binary_version": "204-5ubuntu20.31", "binary_name": "libpam-systemd-dbgsym" }, { "binary_version": "204-5ubuntu20.31", "binary_name": "libsystemd-daemon-dev" }, { "binary_version": "204-5ubuntu20.31", "binary_name": "libsystemd-daemon0" }, { "binary_version": "204-5ubuntu20.31", "binary_name": "libsystemd-daemon0-dbgsym" }, { "binary_version": "204-5ubuntu20.31", "binary_name": "libsystemd-id128-0" }, { "binary_version": "204-5ubuntu20.31", "binary_name": "libsystemd-id128-0-dbgsym" }, { "binary_version": "204-5ubuntu20.31", "binary_name": "libsystemd-id128-dev" }, { "binary_version": "204-5ubuntu20.31", "binary_name": "libsystemd-journal-dev" }, { "binary_version": "204-5ubuntu20.31", "binary_name": "libsystemd-journal0" }, { "binary_version": "204-5ubuntu20.31", "binary_name": "libsystemd-journal0-dbgsym" }, { "binary_version": "204-5ubuntu20.31", "binary_name": "libsystemd-login-dev" }, { "binary_version": "204-5ubuntu20.31", "binary_name": "libsystemd-login0" }, { "binary_version": "204-5ubuntu20.31", "binary_name": "libsystemd-login0-dbgsym" }, { "binary_version": "204-5ubuntu20.31", "binary_name": "libudev-dev" }, { "binary_version": "204-5ubuntu20.31", "binary_name": "libudev1" }, { "binary_version": "204-5ubuntu20.31", "binary_name": "libudev1-dbgsym" }, { "binary_version": "204-5ubuntu20.31", "binary_name": "libudev1-udeb" }, { "binary_version": "204-5ubuntu20.31", "binary_name": "libudev1-udeb-dbgsym" }, { "binary_version": "204-5ubuntu20.31", "binary_name": "python-systemd" }, { "binary_version": "204-5ubuntu20.31", "binary_name": "python-systemd-dbgsym" }, { "binary_version": "204-5ubuntu20.31", "binary_name": "systemd" }, { "binary_version": "204-5ubuntu20.31", "binary_name": "systemd-dbgsym" }, { "binary_version": "204-5ubuntu20.31", "binary_name": "systemd-services" }, { "binary_version": "204-5ubuntu20.31", "binary_name": "systemd-services-dbgsym" }, { "binary_version": "204-5ubuntu20.31", "binary_name": "udev" }, { "binary_version": "204-5ubuntu20.31", "binary_name": "udev-dbgsym" }, { "binary_version": "204-5ubuntu20.31", "binary_name": "udev-udeb" }, { "binary_version": "204-5ubuntu20.31", "binary_name": "udev-udeb-dbgsym" } ] }
{ "availability": "No subscription required", "binaries": [ { "binary_version": "229-4ubuntu21.21", "binary_name": "libnss-myhostname" }, { "binary_version": "229-4ubuntu21.21", "binary_name": "libnss-myhostname-dbgsym" }, { "binary_version": "229-4ubuntu21.21", "binary_name": "libnss-mymachines" }, { "binary_version": "229-4ubuntu21.21", "binary_name": "libnss-mymachines-dbgsym" }, { "binary_version": "229-4ubuntu21.21", "binary_name": "libnss-resolve" }, { "binary_version": "229-4ubuntu21.21", "binary_name": "libnss-resolve-dbgsym" }, { "binary_version": "229-4ubuntu21.21", "binary_name": "libpam-systemd" }, { "binary_version": "229-4ubuntu21.21", "binary_name": "libpam-systemd-dbgsym" }, { "binary_version": "229-4ubuntu21.21", "binary_name": "libsystemd-dev" }, { "binary_version": "229-4ubuntu21.21", "binary_name": "libsystemd-dev-dbgsym" }, { "binary_version": "229-4ubuntu21.21", "binary_name": "libsystemd0" }, { "binary_version": "229-4ubuntu21.21", "binary_name": "libsystemd0-dbgsym" }, { "binary_version": "229-4ubuntu21.21", "binary_name": "libudev-dev" }, { "binary_version": "229-4ubuntu21.21", "binary_name": "libudev-dev-dbgsym" }, { "binary_version": "229-4ubuntu21.21", "binary_name": "libudev1" }, { "binary_version": "229-4ubuntu21.21", "binary_name": "libudev1-dbgsym" }, { "binary_version": "229-4ubuntu21.21", "binary_name": "libudev1-udeb" }, { "binary_version": "229-4ubuntu21.21", "binary_name": "libudev1-udeb-dbgsym" }, { "binary_version": "229-4ubuntu21.21", "binary_name": "systemd" }, { "binary_version": "229-4ubuntu21.21", "binary_name": "systemd-container" }, { "binary_version": "229-4ubuntu21.21", "binary_name": "systemd-container-dbgsym" }, { "binary_version": "229-4ubuntu21.21", "binary_name": "systemd-coredump" }, { "binary_version": "229-4ubuntu21.21", "binary_name": "systemd-coredump-dbgsym" }, { "binary_version": "229-4ubuntu21.21", "binary_name": "systemd-dbg" }, { "binary_version": "229-4ubuntu21.21", "binary_name": "systemd-dbgsym" }, { "binary_version": "229-4ubuntu21.21", "binary_name": "systemd-journal-remote" }, { "binary_version": "229-4ubuntu21.21", "binary_name": "systemd-journal-remote-dbgsym" }, { "binary_version": "229-4ubuntu21.21", "binary_name": "systemd-sysv" }, { "binary_version": "229-4ubuntu21.21", "binary_name": "systemd-sysv-dbgsym" }, { "binary_version": "229-4ubuntu21.21", "binary_name": "udev" }, { "binary_version": "229-4ubuntu21.21", "binary_name": "udev-dbgsym" }, { "binary_version": "229-4ubuntu21.21", "binary_name": "udev-udeb" }, { "binary_version": "229-4ubuntu21.21", "binary_name": "udev-udeb-dbgsym" } ] }
{ "availability": "No subscription required", "binaries": [ { "binary_version": "237-3ubuntu10.19", "binary_name": "libnss-myhostname" }, { "binary_version": "237-3ubuntu10.19", "binary_name": "libnss-myhostname-dbgsym" }, { "binary_version": "237-3ubuntu10.19", "binary_name": "libnss-mymachines" }, { "binary_version": "237-3ubuntu10.19", "binary_name": "libnss-mymachines-dbgsym" }, { "binary_version": "237-3ubuntu10.19", "binary_name": "libnss-resolve" }, { "binary_version": "237-3ubuntu10.19", "binary_name": "libnss-resolve-dbgsym" }, { "binary_version": "237-3ubuntu10.19", "binary_name": "libnss-systemd" }, { "binary_version": "237-3ubuntu10.19", "binary_name": "libnss-systemd-dbgsym" }, { "binary_version": "237-3ubuntu10.19", "binary_name": "libpam-systemd" }, { "binary_version": "237-3ubuntu10.19", "binary_name": "libpam-systemd-dbgsym" }, { "binary_version": "237-3ubuntu10.19", "binary_name": "libsystemd-dev" }, { "binary_version": "237-3ubuntu10.19", "binary_name": "libsystemd0" }, { "binary_version": "237-3ubuntu10.19", "binary_name": "libsystemd0-dbgsym" }, { "binary_version": "237-3ubuntu10.19", "binary_name": "libudev-dev" }, { "binary_version": "237-3ubuntu10.19", "binary_name": "libudev1" }, { "binary_version": "237-3ubuntu10.19", "binary_name": "libudev1-dbgsym" }, { "binary_version": "237-3ubuntu10.19", "binary_name": "libudev1-udeb" }, { "binary_version": "237-3ubuntu10.19", "binary_name": "systemd" }, { "binary_version": "237-3ubuntu10.19", "binary_name": "systemd-container" }, { "binary_version": "237-3ubuntu10.19", "binary_name": "systemd-container-dbgsym" }, { "binary_version": "237-3ubuntu10.19", "binary_name": "systemd-coredump" }, { "binary_version": "237-3ubuntu10.19", "binary_name": "systemd-coredump-dbgsym" }, { "binary_version": "237-3ubuntu10.19", "binary_name": "systemd-dbgsym" }, { "binary_version": "237-3ubuntu10.19", "binary_name": "systemd-journal-remote" }, { "binary_version": "237-3ubuntu10.19", "binary_name": "systemd-journal-remote-dbgsym" }, { "binary_version": "237-3ubuntu10.19", "binary_name": "systemd-sysv" }, { "binary_version": "237-3ubuntu10.19", "binary_name": "systemd-tests" }, { "binary_version": "237-3ubuntu10.19", "binary_name": "systemd-tests-dbgsym" }, { "binary_version": "237-3ubuntu10.19", "binary_name": "udev" }, { "binary_version": "237-3ubuntu10.19", "binary_name": "udev-dbgsym" }, { "binary_version": "237-3ubuntu10.19", "binary_name": "udev-udeb" } ] }