CVE-2019-6454

MEDIUMMonitor

Published:Mar 21, 2019(7 years ago)

Modified:Nov 21, 2024

Local AccessNo InteractionLow Complexity

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).

Attack Characteristics

Local AccessLow ComplexityLow PrivilegesNo User Interaction

🤖

AI analysis not yet available

Plain-English explanation, risk summary, and remediation steps will appear here once AI analysis is complete.

No Fix Known

No patch has been released yet. Apply workarounds or mitigations where available.

Affected Software

Vendor	Product	Versions	Fixed In
redhat	enterprise_linux_workstation	-	-
mcafee	web_gateway	7.7.2.21	-
mcafee	web_gateway	7.8.0 - 7.8.2.8

Timeline

Published
CVE disclosed publicly
Mar 21, 20197 years ago
Last Modified
Most recent update
Nov 21, 20241 year ago
Indexed to CVEInsight
Added to this platform
Mar 29, 20261 month ago

References

http://lists.opensuse.org/opensuse-security-announce/2019-02/msg00070....Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00062....Mailing List
http://www.openwall.com/lists/oss-security/2019/02/18/3Mailing List

CVSS Score

v3.1

5.5/ 10.0

MEDIUM

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

At a Glance

Affected Products

References

redhat / enterprise_linux_workstation

http://www.openwall.com/lists/oss-security/2019/02/19/1Mailing List

http://www.openwall.com/lists/oss-security/2021/07/20/2Exploit

http://www.securityfocus.com/bid/107081Third Party Advisory

https://access.redhat.com/errata/RHSA-2019:0368Third Party Advisory

https://access.redhat.com/errata/RHSA-2019:0990Third Party Advisory

https://access.redhat.com/errata/RHSA-2019:1322Third Party Advisory

https://access.redhat.com/errata/RHSA-2019:1502Third Party Advisory

https://access.redhat.com/errata/RHSA-2019:2805Third Party Advisory

https://github.com/systemd/systemd/commits/master/src/libsystemd/sd-bu...Patch

https://kc.mcafee.com/corporate/index?page=content&id=SB10278Patch

https://lists.debian.org/debian-lts-announce/2019/02/msg00031.htmlMailing List

https://lists.fedoraproject.org/archives/list/package-announce%40lists...

https://security.netapp.com/advisory/ntap-20190327-0004/Third Party Advisory

https://usn.ubuntu.com/3891-1/Third Party Advisory

https://www.debian.org/security/2019/dsa-4393Third Party Advisory

http://lists.opensuse.org/opensuse-security-announce/2019-02/msg00070....Third Party Advisory

http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00062....Mailing List

http://www.openwall.com/lists/oss-security/2019/02/18/3Mailing List