vulnerability
Amazon Linux AMI 2: CVE-2019-6454: Security patch for systemd (ALAS-2019-1164)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:L/AC:L/Au:N/C:N/I:N/A:C) | Mar 21, 2019 | Apr 27, 2020 | Nov 27, 2024 |
Severity
5
CVSS
(AV:L/AC:L/Au:N/C:N/I:N/A:C)
Published
Mar 21, 2019
Added
Apr 27, 2020
Modified
Nov 27, 2024
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).
Solutions
amazon-linux-ami-2-upgrade-libgudev1amazon-linux-ami-2-upgrade-libgudev1-develamazon-linux-ami-2-upgrade-systemdamazon-linux-ami-2-upgrade-systemd-debuginfoamazon-linux-ami-2-upgrade-systemd-develamazon-linux-ami-2-upgrade-systemd-journal-gatewayamazon-linux-ami-2-upgrade-systemd-libsamazon-linux-ami-2-upgrade-systemd-networkdamazon-linux-ami-2-upgrade-systemd-pythonamazon-linux-ami-2-upgrade-systemd-resolvedamazon-linux-ami-2-upgrade-systemd-sysv
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