Input validation error in systemd - CVE-2019-6454

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Main Vulnerability Database Vulnerabilities #VU17752

Input validation error in systemd - CVE-2019-6454

Published: February 18, 2019


Vulnerability identifier: #VU17752
CSH Severity: Low
CVSS v4: 6.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2019-6454
CWE-ID: CWE-20
Exploitation vector: Local access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a local unauthenticated attacker to cause DoS condition on the target system.

The weakness exists due to incorrect handling of certain D-Bus messages. A local attacker can supply specially crafted D-Bus messages to crash the init process, resulting in a system denial-of-service (kernel panic).

Affected software

systemd
systemd (Ubuntu package)
systemd (Debian package)
Gentoo Linux
Arch Linux
Red Hat Enterprise Linux Server
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux Desktop
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Scientific Computing
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux EUS Compute Node
Red Hat Enterprise Linux for Power
Opensuse
Fedora
Red Hat Virtualization
Red Hat Virtualization Host
Dell EMC Unity VSA Operating Environment (OE)
Dell EMC Unity Operating Environment (OE)
Dell PowerProtect Cyber Recovery

How to mitigate CVE-2019-6454

Install update from vendor's website.

systemd (Ubuntu package) - addressed in versions 229-4ubuntu21.16, 237-3ubuntu10.13, 239-7ubuntu10.8
systemd (Debian package) - update to 232-25+deb9u9
Dell EMC Unity VSA Operating Environment (OE) - update to 5.0.0.0.5.116
Dell EMC Unity Operating Environment (OE) - update to 5.0.0.0.5.116
Dell PowerProtect Cyber Recovery - update to 18.1.1.2-8
systemd - addressed in versions 238-12.git07f8cd5.fc28, 239-12.git8bca462.fc29

External References

Related Security Bulletins