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Red Hat 7 RHSA-2015:2248-03 Moderate: Netcf DoS Threat Fix

red hat
Calendar Grey November 19, 2015
Scroller Redhat
The revised netcf packages address a security vulnerability, incorporate various improvements, and are classified as having Moderate significance for Red Hat Enterprise Linux 7.
Updated netcf packages that fix one security issue, several bugs, and add various enhancements are now available for Red Hat Enterprise Linux 7

Solution

Before applying this update, make sure all previously released errata relevant to your system have been applied.

For details on how to apply this update, refer to:

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

Summary

The netcf packages contain a library for modifying the network configuration of a system. Network configuration is expressed in a platform-independent XML format, which netcf translates into changes to the system's "native" network configuration files.
A denial of service flaw was found in netcf. A specially crafted interface name could cause an application using netcf (such as the libvirt daemon) to crash. (CVE-2014-8119)
This issue was discovered by Hao Liu of Red Hat.
The netcf packages have been upgraded to upstream version 0.2.8, which provides a number of bug fixes and enhancements over the previous version. (BZ#1206680)
Users of netcf are advised to upgrade to these updated packages, which fix these bugs and add these enhancements.

Topics%20covered

Topics Covered

security advisory Red Hat bug fix moderate impact DoS threat network configuration netcf

References

https://access.redhat.com/security/cve/CVE-2014-8119 https://access.redhat.com/security/updates/classification/#moderate

Package List

Red Hat Enterprise Linux Client (v. 7):
Source: netcf-0.2.8-1.el7.src.rpm
x86_64: netcf-debuginfo-0.2.8-1.el7.i686.rpm netcf-debuginfo-0.2.8-1.el7.x86_64.rpm netcf-libs-0.2.8-1.el7.i686.rpm netcf-libs-0.2.8-1.el7.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64: netcf-0.2.8-1.el7.x86_64.rpm netcf-debuginfo-0.2.8-1.el7.i686.rpm netcf-debuginfo-0.2.8-1.el7.x86_64.rpm netcf-devel-0.2.8-1.el7.i686.rpm netcf-devel-0.2.8-1.el7.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional (v. 7):
Source: netcf-0.2.8-1.el7.src.rpm
x86_64: netcf-0.2.8-1.el7.x86_64.rpm netcf-debuginfo-0.2.8-1.el7.i686.rpm netcf-debuginfo-0.2.8-1.el7.x86_64.rpm netcf-devel-0.2.8-1.el7.i686.rpm netcf-devel-0.2.8-1.el7.x86_64.rpm netcf-libs-0.2.8-1.el7.i686.rpm netcf-libs-0.2.8-1.el7.x86_64.rpm
Red Hat Enterprise Linux Server (v. 7):
Source: netcf-0.2.8-1.el7.src.rpm
ppc64: netcf-debuginfo-0.2.8-1.el7.ppc.rpm netcf-debuginfo-0.2.8-1.el7.ppc64.rpm netcf-libs-0.2.8-1.el7.ppc.rpm netcf-libs-0.2.8-1.el7.ppc64.rpm
ppc64le: netcf-debuginfo-0.2.8-1.el7.ppc64le.rpm netcf-libs-0.2.8-1.el7.ppc64le.rpm
s390x: netcf-debuginfo-0.2.8-1.el7.s390.rpm netcf-debuginfo-0.2.8-1.el7.s390x.rpm netcf-libs-0.2.8-1.el7.s390.rpm netcf-libs-0.2.8-1.el7.s390x.rpm
x86_64: netcf-debuginfo-0.2.8-1.el7.i686.rpm

Read the Full Advisory


Advisory ID: RHSA-2015:2248-03
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2015:2248.html
Issue date: 2015-11-19

Topic

Updated netcf packages that fix one security issue, several bugs, and addvarious enhancements are now available for Red Hat Enterprise Linux 7.Red Hat Product Security has rated this update as having Moderate securityimpact. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available from the CVE link in theReferences section.

Topics%20covered

Topics Covered

security advisory Red Hat bug fix moderate impact DoS threat network configuration netcf

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 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

Bugs Fixed

761246 - Bad parsing of network-scripts/ifcfg-xxxx files.

1090011 - Need to limit names of new interfaces to IFNAMSIZ

1113983 - netcf should allow interfaces to be configured with both DHCPv4 and static IPv4 addresses at the same time

1159000 - netcf ignores any IPv4 address past the first one

1170941 - Remove extraneous single quotes from IPV6ADDR_SECONDARIES

1172176 - CVE-2014-8119 netcf: augeas path expression injection via interface name

1206680 - rebase netcf for RHEL7.2

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