Out-of-bounds read in systemd-journald - CVE-2018-16866

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Main Vulnerability Database Vulnerabilities #VU16942

Out-of-bounds read in systemd-journald - CVE-2018-16866

Published: January 11, 2019


Vulnerability identifier: #VU16942
CSH Severity: Low
CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2018-16866
CWE-ID: CWE-125
Exploitation vector: Local access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a local attacker to obtain potentially sensitive information on the target system.

The weakness exists due to out-of-bounds read when handling malicious input. A local attacker can run a specially crafted application and access memory processes data.

Affected software

systemd-journald
Gentoo Linux
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux Desktop
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux Server
Red Hat Enterprise Linux for Scientific Computing
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Enterprise Linux for x86_64 - Extended Update Support
Red Hat Enterprise Linux for Power, big endian - Extended Update Support
Red Hat Enterprise Linux EUS Compute Node
Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for Power
Opensuse
Fedora
systemd (Red Hat package)
systemd (Ubuntu package)
systemd (Debian package)
systemd

How to mitigate CVE-2018-16866

Patches have been sent to linux-distros@openwall.

systemd (Red Hat package) - update to 219-57.el7_5.9
systemd (Ubuntu package) - addressed in versions 229-4ubuntu21.15, 237-3ubuntu10.11, 239-7ubuntu10.6
systemd (Debian package) - update to 232-25+deb9u7
systemd - addressed in versions 238-11.gita76ee90.fc28, 239-8.gite339eae.fc29

External References

Related Security Bulletins