CVEvulnerability

CVE-2019-6454

5.5 MEDIUM Published 2019-03-21 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2019-03-21
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0 ([email protected])
4.9 MEDIUM — AV:L/AC:L/Au:N/C:N/I:N/A:C
Weaknesses
CWE-787

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).

Affected configurations

• systemd project systemd 239 • opensuse leap 15.0 • netapp active iq performance analytics services • debian debian linux 8.0 • debian debian linux 9.0 • fedoraproject fedora 29 • canonical ubuntu linux 16.04 • canonical ubuntu linux 18.04 • canonical ubuntu linux 18.10 • redhat enterprise linux 8.0 • redhat enterprise linux compute node eus 7.5 • redhat enterprise linux desktop 7.0 • redhat enterprise linux eus 7.4 • redhat enterprise linux eus 7.5 • redhat enterprise linux eus 8.1 • redhat enterprise linux eus 8.2 • redhat enterprise linux eus 8.4 • redhat enterprise linux for ibm z systems eus 7.4 • redhat enterprise linux for ibm z systems eus 7.5 • redhat enterprise linux for ibm z systems eus 8.1 • redhat enterprise linux for ibm z systems eus 8.2 • redhat enterprise linux for ibm z systems eus 8.4 • redhat enterprise linux for power big endian eus 7.4 • redhat enterprise linux for power little endian 8.0 • redhat enterprise linux for power little endian eus 7.4 • redhat enterprise linux for power little endian eus 7.5 • redhat enterprise linux for power little endian eus 8.1 • redhat enterprise linux for power little endian eus 8.2 • redhat enterprise linux for power little endian eus 8.4 • redhat enterprise linux server 7.0 • redhat enterprise linux server aus 7.3 • redhat enterprise linux server aus 7.4 • redhat enterprise linux server aus 7.6 • redhat enterprise linux server aus 8.2 • redhat enterprise linux server aus 8.4 • redhat enterprise linux server eus 7.6 • redhat enterprise linux server for power little endian update services for sap solutions 7.3 • redhat enterprise linux server for power little endian update services for sap solutions 7.4 • redhat enterprise linux server for power little endian update services for sap solutions 8.0 • redhat enterprise linux server for power little endian update services for sap solutions 8.1 • redhat enterprise linux server for power little endian update services for sap solutions 8.2 • redhat enterprise linux server tus 7.3 • redhat enterprise linux server tus 7.4 • redhat enterprise linux server tus 7.6 • redhat enterprise linux server tus 8.2 • redhat enterprise linux server tus 8.4 • redhat enterprise linux server update services for sap solutions 7.3 • redhat enterprise linux server update services for sap solutions 7.4 • redhat enterprise linux server update services for sap solutions 8.0 • redhat enterprise linux server update services for sap solutions 8.1 • redhat enterprise linux server update services for sap solutions 8.2 • redhat enterprise linux workstation 7.0 • mcafee web gateway (< 7.7.2.21) • mcafee web gateway (>= 7.8.0 < 7.8.2.8) • mcafee web gateway (>= 8.0.0 < 8.1.1)

Related

Weakness · CWE (1)

  • CWE-787 Out-of-bounds Write weakness

References