Huawei EulerOS: CVE-2019-6454: systemd security update
Description
An issue was discovered in sd-bus in systemd 239. bus_process_object() in libsystemd/sd-bus/bus-objects.c allocates a variable-length stack buffer for temporarily storing the object path of incoming D-Bus messages. An unprivileged local user can exploit this by sending a specially crafted message to PID1, causing the stack pointer to jump over the stack guard pages into an unmapped memory region and trigger a denial of service (systemd PID1 crash and kernel panic).
Solution(s)
- huawei-euleros-2_0_sp5-upgrade-libgudev1
- huawei-euleros-2_0_sp5-upgrade-libgudev1-devel
- huawei-euleros-2_0_sp5-upgrade-systemd
- huawei-euleros-2_0_sp5-upgrade-systemd-devel
- huawei-euleros-2_0_sp5-upgrade-systemd-libs
- huawei-euleros-2_0_sp5-upgrade-systemd-python
- huawei-euleros-2_0_sp5-upgrade-systemd-sysv
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