CVE-2019-6454

MEDIUM

systemd - Denial of Service via Crafted D-Bus Message

Title source: llm
STIX 2.1

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).

References (18)

Core 18
Core References
Mailing List, Patch, Third Party Advisory mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2019/02/18/3
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/107081
Third Party Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/3891-1/
Third Party Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2019:0368
Third Party Advisory vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2019-02/msg00070.html
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2019/02/19/1
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2019/02/msg00031.html
Third Party Advisory vendor-advisory x_refsource_debian
https://www.debian.org/security/2019/dsa-4393
Third Party Advisory x_refsource_confirm
https://security.netapp.com/advisory/ntap-20190327-0004/
Patch, Third Party Advisory x_refsource_confirm
https://kc.mcafee.com/corporate/index?page=content&id=SB10278
Third Party Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2019:0990
Mailing List, Third Party Advisory vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00062.html
Third Party Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2019:1322
Third Party Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2019:1502
Third Party Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2019:2805
Exploit, Mailing List, Third Party Advisory mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2021/07/20/2

Scores

CVSS v3 5.5
EPSS 0.0014
EPSS Percentile 33.7%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-787
Status published
Products (50)
canonical/ubuntu_linux 16.04
canonical/ubuntu_linux 18.04
canonical/ubuntu_linux 18.10
debian/debian_linux 8.0
debian/debian_linux 9.0
fedoraproject/fedora 29
mcafee/web_gateway < 7.7.2.21
netapp/active_iq_performance_analytics_services
opensuse/leap 15.0
redhat/enterprise_linux 8.0
... and 40 more
Published Mar 21, 2019
Tracked Since Feb 18, 2026