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Gentoo Linux: CVE-2019-6454: systemd: Multiple vulnerabilities

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Gentoo Linux: CVE-2019-6454: systemd: Multiple vulnerabilities

Severity
5
CVSS
(AV:L/AC:L/Au:N/C:N/I:N/A:C)
Published
03/10/2019
Created
03/19/2019
Added
03/11/2019
Modified
09/23/2019

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)

  • gentoo-linux-upgrade-sys-apps-systemd

References

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