CVE-2019-6454 - CVE House
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Status published Medium CVE-2019-6454

An issue was discovered in sd-bus in systemd 239. bus_process_object()...

Vulnerability 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).

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Medium 4.4

Affected Vendor

systemd project

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Affected Software

systemd, leap, active iq performance analytics services, debian linux, fedora, ubuntu linux, enterprise linux, enterprise linux compute node eus, enterprise linux desktop, enterprise linux eus, enterprise linux for ibm z systems eus, enterprise linux for power big endian eus, enterprise linux for power little endian, enterprise linux for power little endian eus, enterprise linux server, enterprise linux server aus, enterprise linux server eus, enterprise linux server for power little endian update services for sap solutions, enterprise linux server tus, enterprise linux server update services for sap solutions, enterprise linux workstation, web gateway
Vulnerable Versions:
239, 15.0, 8.0, 9.0, 29, 16.04, 18.04, 18.10, 7.5, 7.0, 7.4, 8.1, 8.2, 8.4, 7.3, 7.6, 0, 7.8.0, 8.0.0

Timeline

Official Publish: March 17th, 2019
Last Modified: August 4th, 2024
Added to House: July 20th, 2026

CVSS Vectors

V3: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.