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Vulnerability Details : CVE-2019-6454

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).
Publish Date : 2019-03-21 Last Update Date : 2022-02-20
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- CVSS Scores & Vulnerability Types

CVSS Score
4.9
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact Complete (There is a total shutdown of the affected resource. The attacker can render the resource completely unavailable.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Denial Of Service
CWE ID 787

- Related OVAL Definitions

Title Definition Id Class Family
RHSA-2019:0368: systemd security update (Important) oval:com.redhat.rhsa:def:20190368 unix
RHSA-2019:0990: systemd security and bug fix update (Moderate) oval:com.redhat.rhsa:def:20190990 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2019-6454

# Product Type Vendor Product Version Update Edition Language
1 OS Canonical Ubuntu Linux 16.04 * * * Version Details Vulnerabilities
2 OS Canonical Ubuntu Linux 18.04 * * * Version Details Vulnerabilities
3 OS Canonical Ubuntu Linux 18.10 * * * Version Details Vulnerabilities
4 OS Debian Debian Linux 8.0 * * * Version Details Vulnerabilities
5 OS Debian Debian Linux 9.0 * * * Version Details Vulnerabilities
6 OS Fedoraproject Fedora 29 * * * Version Details Vulnerabilities
7 Application Mcafee Web Gateway * * * * Version Details Vulnerabilities
8 Application Netapp Active Iq Performance Analytics Services - * * * Version Details Vulnerabilities
9 OS Opensuse Leap 15.0 * * * Version Details Vulnerabilities
10 OS Redhat Enterprise Linux 8.0 * * * Version Details Vulnerabilities
11 OS Redhat Enterprise Linux Compute Node Eus 7.5 * * * Version Details Vulnerabilities
12 OS Redhat Enterprise Linux Desktop 7.0 * * * Version Details Vulnerabilities
13 OS Redhat Enterprise Linux Eus 7.4 * * * Version Details Vulnerabilities
14 OS Redhat Enterprise Linux Eus 7.5 * * * Version Details Vulnerabilities
15 OS Redhat Enterprise Linux Eus 8.1 * * * Version Details Vulnerabilities
16 OS Redhat Enterprise Linux Eus 8.2 * * * Version Details Vulnerabilities
17 OS Redhat Enterprise Linux Eus 8.4 * * * Version Details Vulnerabilities
18 OS Redhat Enterprise Linux For Ibm Z Systems Eus 7.4 * * * Version Details Vulnerabilities
19 OS Redhat Enterprise Linux For Ibm Z Systems Eus 7.5 * * * Version Details Vulnerabilities
20 OS Redhat Enterprise Linux For Ibm Z Systems Eus 8.1 * * * Version Details Vulnerabilities
21 OS Redhat Enterprise Linux For Ibm Z Systems Eus 8.2 * * * Version Details Vulnerabilities
22 OS Redhat Enterprise Linux For Ibm Z Systems Eus 8.4 * * * Version Details Vulnerabilities
23 OS Redhat Enterprise Linux For Power Big Endian Eus 7.4 * * * Version Details Vulnerabilities
24 OS Redhat Enterprise Linux For Power Little Endian 8.0 * * * Version Details Vulnerabilities
25 OS Redhat Enterprise Linux For Power Little Endian Eus 7.4 * * * Version Details Vulnerabilities
26 OS Redhat Enterprise Linux For Power Little Endian Eus 7.5 * * * Version Details Vulnerabilities
27 OS Redhat Enterprise Linux For Power Little Endian Eus 8.1 * * * Version Details Vulnerabilities
28 OS Redhat Enterprise Linux For Power Little Endian Eus 8.2 * * * Version Details Vulnerabilities
29 OS Redhat Enterprise Linux For Power Little Endian Eus 8.4 * * * Version Details Vulnerabilities
30 OS Redhat Enterprise Linux Server 7.0 * * * Version Details Vulnerabilities
31 OS Redhat Enterprise Linux Server Aus 7.3 * * * Version Details Vulnerabilities
32 OS Redhat Enterprise Linux Server Aus 7.4 * * * Version Details Vulnerabilities
33 OS Redhat Enterprise Linux Server Aus 7.6 * * * Version Details Vulnerabilities
34 OS Redhat Enterprise Linux Server Aus 8.2 * * * Version Details Vulnerabilities
35 OS Redhat Enterprise Linux Server Aus 8.4 * * * Version Details Vulnerabilities
36 OS Redhat Enterprise Linux Server Eus 7.6 * * * Version Details Vulnerabilities
37 OS Redhat Enterprise Linux Server For Power Little Endian Update Services For Sap Solutions 7.3 * * * Version Details Vulnerabilities
38 OS Redhat Enterprise Linux Server For Power Little Endian Update Services For Sap Solutions 7.4 * * * Version Details Vulnerabilities
39 OS Redhat Enterprise Linux Server For Power Little Endian Update Services For Sap Solutions 8.0 * * * Version Details Vulnerabilities
40 OS Redhat Enterprise Linux Server For Power Little Endian Update Services For Sap Solutions 8.1 * * * Version Details Vulnerabilities
41 OS Redhat Enterprise Linux Server For Power Little Endian Update Services For Sap Solutions 8.2 * * * Version Details Vulnerabilities
42 OS Redhat Enterprise Linux Server Tus 7.3 * * * Version Details Vulnerabilities
43 OS Redhat Enterprise Linux Server Tus 7.4 * * * Version Details Vulnerabilities
44 OS Redhat Enterprise Linux Server Tus 7.6 * * * Version Details Vulnerabilities
45 OS Redhat Enterprise Linux Server Tus 8.2 * * * Version Details Vulnerabilities
46 OS Redhat Enterprise Linux Server Tus 8.4 * * * Version Details Vulnerabilities
47 OS Redhat Enterprise Linux Server Update Services For Sap Solutions 7.3 * * * Version Details Vulnerabilities
48 OS Redhat Enterprise Linux Server Update Services For Sap Solutions 7.4 * * * Version Details Vulnerabilities
49 OS Redhat Enterprise Linux Server Update Services For Sap Solutions 8.0 * * * Version Details Vulnerabilities
50 OS Redhat Enterprise Linux Server Update Services For Sap Solutions 8.1 * * * Version Details Vulnerabilities
51 OS Redhat Enterprise Linux Server Update Services For Sap Solutions 8.2 * * * Version Details Vulnerabilities
52 OS Redhat Enterprise Linux Workstation 7.0 * * * Version Details Vulnerabilities
53 Application Systemd Project Systemd 239 * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Canonical Ubuntu Linux 3
Debian Debian Linux 2
Fedoraproject Fedora 1
Mcafee Web Gateway 1
Netapp Active Iq Performance Analytics Services 1
Opensuse Leap 1
Redhat Enterprise Linux 1
Redhat Enterprise Linux Compute Node Eus 1
Redhat Enterprise Linux Desktop 1
Redhat Enterprise Linux Eus 5
Redhat Enterprise Linux For Ibm Z Systems Eus 5
Redhat Enterprise Linux For Power Big Endian Eus 1
Redhat Enterprise Linux For Power Little Endian 1
Redhat Enterprise Linux For Power Little Endian Eus 5
Redhat Enterprise Linux Server 1
Redhat Enterprise Linux Server Aus 5
Redhat Enterprise Linux Server Eus 1
Redhat Enterprise Linux Server For Power Little Endian Update Services For Sap Solutions 5
Redhat Enterprise Linux Server Tus 5
Redhat Enterprise Linux Server Update Services For Sap Solutions 5
Redhat Enterprise Linux Workstation 1
Systemd Project Systemd 1

- References For CVE-2019-6454

https://access.redhat.com/errata/RHSA-2019:1502
REDHAT RHSA-2019:1502
https://access.redhat.com/errata/RHSA-2019:1322
REDHAT RHSA-2019:1322
http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00062.html
SUSE openSUSE-SU-2019:1450
https://access.redhat.com/errata/RHSA-2019:0990
REDHAT RHSA-2019:0990
https://kc.mcafee.com/corporate/index?page=content&id=SB10278 CONFIRM
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/N67IOBOTDOMVNQJ5QRU2MXLEECXPGNVJ/
FEDORA FEDORA-2019-8434288a24
http://lists.opensuse.org/opensuse-security-announce/2019-02/msg00070.html
SUSE SUSE-SA:2019:0255-1
https://access.redhat.com/errata/RHSA-2019:0368
REDHAT RHSA-2019:0368
http://www.openwall.com/lists/oss-security/2019/02/18/3
MLIST [oss-security] 20190218 CVE-2019-6454: systemd (PID1) crash with specially crafted D-Bus message
https://security.netapp.com/advisory/ntap-20190327-0004/ CONFIRM
http://www.securityfocus.com/bid/107081
BID 107081 systemd CVE-2019-6454 Local Denial of Service Vulnerability Release Date:2019-02-20
http://www.openwall.com/lists/oss-security/2019/02/19/1
MLIST [oss-security] 20190219 CVE-2019-6454: systemd (PID1) crash with specially crafted D-Bus message
https://github.com/systemd/systemd/commits/master/src/libsystemd/sd-bus/bus-objects.c
https://lists.debian.org/debian-lts-announce/2019/02/msg00031.html
MLIST [SECURITY] [DLA 1684-1] 20190219 systemd security update
http://www.openwall.com/lists/oss-security/2021/07/20/2
MLIST [oss-security] 20210720 CVE-2021-33910: Denial of service (stack exhaustion) in systemd (PID 1)
https://www.debian.org/security/2019/dsa-4393
DEBIAN DSA-4393-1
https://usn.ubuntu.com/3891-1/
UBUNTU USN-3891-1
https://access.redhat.com/errata/RHSA-2019:2805
REDHAT RHSA-2019:2805

- Metasploit Modules Related To CVE-2019-6454

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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