medium
5.5
CWE
787
Advisory Published
CVE Published
Updated

CVE-2019-6454

First published: Thu Jan 17 2019(Updated: )

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).

Credit: cve@mitre.org cve@mitre.org cve@mitre.org

Affected SoftwareAffected VersionHow to fix
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
debian/systemd
247.3-7+deb11u5
247.3-7+deb11u6
252.31-1~deb12u1
257~rc3-1
257-1

Remedy

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

Remedy

https://github.com/systemd/systemd/commits/master/src/libsystemd/sd-bus/bus-objects.c

Remedy

https://kc.mcafee.com/corporate/index?page=content&id=SB10278

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