Executive Summary

Summary
Title systemd security update
Informations
Name RHSA-2017:0003 First vendor Publication 2017-01-03
Vendor RedHat Last vendor Modification 2017-01-03
Severity (Vendor) N/A Revision 01

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:L/Au:N/C:N/I:N/A:C)
Cvss Base Score 4.9 Attack Range Local
Cvss Impact Score 6.9 Attack Complexity Low
Cvss Expoit Score 3.9 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Problem Description:

An update for systemd is now available for Red Hat Enterprise Linux 7.1 Extended Update Support.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux ComputeNode EUS (v. 7.1) - x86_64 Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.1) - x86_64 Red Hat Enterprise Linux Server EUS (v. 7.1) - ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Server Optional EUS (v. 7.1) - ppc64, ppc64le, s390x, x86_64

3. Description:

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):

* A flaw was found in the way systemd handled empty notification messages. A local attacker could use this flaw to make systemd freeze its execution, preventing further management of system services, system shutdown, or zombie process collection via systemd. (CVE-2016-7796)

4. 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

5. Bugs fixed (https://bugzilla.redhat.com/):

1381911 - CVE-2016-7796 systemd: freeze when PID 1 receives a zero-length message over notify socket

Original Source

Url : https://rhn.redhat.com/errata/RHSA-2017-0003.html

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-20 Improper Input Validation

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1
Application 4
Os 1
Os 2
Os 1
Os 1
Os 1
Os 1
Os 1

Nessus® Vulnerability Scanner

Date Description
2017-01-05 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2017-0003.nasl - Type : ACT_GATHER_INFO
2016-10-17 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2016-1194.nasl - Type : ACT_GATHER_INFO
2016-10-14 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2016-1184.nasl - Type : ACT_GATHER_INFO
2016-10-10 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2016-2475-1.nasl - Type : ACT_GATHER_INFO
2016-10-10 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2016-2476-1.nasl - Type : ACT_GATHER_INFO

Alert History

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0
1
Date Informations
2017-01-06 13:25:36
  • Multiple Updates
2017-01-03 21:23:47
  • First insertion