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Red Hat: RHSA-2019:0049 Important: Systemd Stack Overflow Risk

red hat
Calendar Grey January 14, 2019
Dist Redhat Esm H88
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ====================================================
An update for systemd is now available for Red Hat Enterprise Linux 7

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: Out-of-bounds heap write in systemd-networkd dhcpv6 option handling (CVE-2018-15688)
* 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 Ubuntu Security Team for reporting CVE-2018-15688 and Qualys Research Labs for reporting CVE-2018-16864 and CVE-2018-16865. Upstream acknowledges Felix Wilhelm (Google) as the original reporter of CVE-2018-15688.

Topics%20covered

Topics Covered

security advisory Red Hat security issues stack overflow important update out-of-bounds systemd

References

https://access.redhat.com/security/cve/CVE-2018-15688 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 Client (v. 7):
Source: systemd-219-62.el7_6.2.src.rpm
x86_64: libgudev1-219-62.el7_6.2.i686.rpm libgudev1-219-62.el7_6.2.x86_64.rpm systemd-219-62.el7_6.2.x86_64.rpm systemd-debuginfo-219-62.el7_6.2.i686.rpm systemd-debuginfo-219-62.el7_6.2.x86_64.rpm systemd-libs-219-62.el7_6.2.i686.rpm systemd-libs-219-62.el7_6.2.x86_64.rpm systemd-python-219-62.el7_6.2.x86_64.rpm systemd-sysv-219-62.el7_6.2.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64: libgudev1-devel-219-62.el7_6.2.i686.rpm libgudev1-devel-219-62.el7_6.2.x86_64.rpm systemd-debuginfo-219-62.el7_6.2.i686.rpm systemd-debuginfo-219-62.el7_6.2.x86_64.rpm systemd-devel-219-62.el7_6.2.i686.rpm systemd-devel-219-62.el7_6.2.x86_64.rpm systemd-journal-gateway-219-62.el7_6.2.x86_64.rpm systemd-networkd-219-62.el7_6.2.x86_64.rpm systemd-resolved-219-62.el7_6.2.i686.rpm systemd-resolved-219-62.el7_6.2.x86_64.rpm
Red Hat Enterprise Linux ComputeNode (v. 7):
Source: systemd-219-62.el7_6.2.src.rpm
x86_64: libgudev1-219-62.el7_6.2.i686.rpm libgudev1-219-62.el7_6.2.x86_64.rpm systemd-219-62.el7_6.2.x86_64.rpm systemd-debuginfo-219-62.el7_6.2.i686.rpm systemd-debuginfo-219-62.el7_6.2.x86_64.rpm systemd-libs-219-62.el7_6.2.i686.rpm systemd-libs-219-62.el7_6.2.x86_64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2019:0049-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2019:0049
Issue date: 2019-01-14

Topic

An update for systemd is now available for Red Hat Enterprise Linux 7.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 Red Hat security issues stack overflow important update out-of-bounds systemd

Relevant Releases Architectures

Red Hat Enterprise Linux Client (v. 7) - x86_64

Red Hat Enterprise Linux Client Optional (v. 7) - x86_64

Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64

Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64

Red Hat Enterprise Linux Server (v. 7) - ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Workstation (v. 7) - x86_64

Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64

Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) - aarch64, ppc64le, s390x

Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) - aarch64, ppc64le, s390x

Bugs Fixed

1639067 - CVE-2018-15688 systemd: Out-of-bounds heap write in systemd-networkd dhcpv6 option handling

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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