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Red Hat: RHSA-2019-0204-01 Important: Systemd Stack Overflow Threat

red hat
Calendar Grey January 29, 2019
Dist Redhat Esm H88
Critical systemd patch introduced for Red Hat Enterprise Linux 7.5. Implement corrections for buffer overflow threats.
An update for systemd is now available for Red Hat Enterprise Linux 7.5 Extended Update Support

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Summary

The systemd packages contain systemd, a system and service manager for Linux, compatible with the SysV and LSB init scripts. It provides aggressive parallelism capabilities, uses socket and D-Bus activation for starting services, offers on-demand starting of daemons, and keeps track of processes using Linux cgroups. In addition, it supports snapshotting and restoring of the system state, maintains mount and automount points, and implements an elaborate transactional dependency-based service control logic. It can also work as a drop-in replacement for sysvinit.
Security Fix(es):
* systemd: stack overflow when calling syslog from a command with long cmdline (CVE-2018-16864)
* systemd: stack overflow when receiving many journald entries (CVE-2018-16865)
For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.
Red Hat would like to thank Qualys Research Labs for reporting these issues.

Topics%20covered

Topics Covered

security advisory security update Red Hat important stack overflow systemd service manager

References

https://access.redhat.com/security/cve/CVE-2018-16864 https://access.redhat.com/security/cve/CVE-2018-16865 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux ComputeNode EUS (v. 7.5):
Source: systemd-219-57.el7_5.5.src.rpm
x86_64: libgudev1-219-57.el7_5.5.i686.rpm libgudev1-219-57.el7_5.5.x86_64.rpm systemd-219-57.el7_5.5.x86_64.rpm systemd-debuginfo-219-57.el7_5.5.i686.rpm systemd-debuginfo-219-57.el7_5.5.x86_64.rpm systemd-libs-219-57.el7_5.5.i686.rpm systemd-libs-219-57.el7_5.5.x86_64.rpm systemd-python-219-57.el7_5.5.x86_64.rpm systemd-sysv-219-57.el7_5.5.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.5):
x86_64: libgudev1-devel-219-57.el7_5.5.i686.rpm libgudev1-devel-219-57.el7_5.5.x86_64.rpm systemd-debuginfo-219-57.el7_5.5.i686.rpm systemd-debuginfo-219-57.el7_5.5.x86_64.rpm systemd-devel-219-57.el7_5.5.i686.rpm systemd-devel-219-57.el7_5.5.x86_64.rpm systemd-journal-gateway-219-57.el7_5.5.x86_64.rpm systemd-networkd-219-57.el7_5.5.x86_64.rpm systemd-resolved-219-57.el7_5.5.i686.rpm systemd-resolved-219-57.el7_5.5.x86_64.rpm
Red Hat Enterprise Linux Server EUS (v. 7.5):
Source: systemd-219-57.el7_5.5.src.rpm
ppc64: libgudev1-219-57.el7_5.5.ppc.rpm libgudev1-219-57.el7_5.5.ppc64.rpm libgudev1-devel-219-57.el7_5.5.ppc.rpm libgudev1-devel-219-57.el7_5.5.ppc64.rpm systemd-219-57.el7_5.5.ppc64.rpm systemd-debuginfo-219-57.el7_5.5.ppc.rpm systemd-debuginfo-219-57.el7_5.5.ppc64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2019:0204-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2019:0204
Issue date: 2019-01-29

Topic

An update for systemd is now available for Red Hat Enterprise Linux 7.5Extended Update Support.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory security update Red Hat important stack overflow systemd service manager

Relevant Releases Architectures

Red Hat Enterprise Linux ComputeNode EUS (v. 7.5) - x86_64

Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.5) - x86_64

Red Hat Enterprise Linux Server EUS (v. 7.5) - ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Server Optional EUS (v. 7.5) - ppc64, ppc64le, s390x, x86_64

Bugs Fixed

1653855 - CVE-2018-16864 systemd: stack overflow when calling syslog from a command with long cmdline

1653861 - CVE-2018-16865 systemd: stack overflow when receiving many journald entries

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