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Red Hat Enterprise Linux 7: RHSA-2020-1176-01 Low: Avahi Security Update

red hat
Calendar Grey March 31, 2020
Dist Redhat Esm H88
Ubuntu has announced a critical security patch for netfilter, tackling emerging vulnerabilities and reinforcing firewall protection.
An update for avahi 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

After installing the update, avahi-daemon will be restarted automatically.

Summary

Avahi is an implementation of the DNS Service Discovery and Multicast DNS specifications for Zero Configuration Networking. It facilitates service discovery on a local network. Avahi and Avahi-aware applications allow you to plug your computer into a network and, with no configuration, view other people to chat with, view printers to print with, and find shared files on other computers.
Security Fix(es):
* avahi: Multicast DNS responds to unicast queries outside of local network (CVE-2017-6519)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Additional Changes:
For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.8 Release Notes linked from the References section.

Topics%20covered

Topics Covered

security advisory network security update Red Hat Enterprise Linux low impact avahi service discovery

References

https://access.redhat.com/security/cve/CVE-2017-6519 https://access.redhat.com/security/updates/classification#low https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/7/html/7.8_release_notes/index

Package List

Red Hat Enterprise Linux Client (v. 7):
Source: avahi-0.6.31-20.el7.src.rpm
x86_64: avahi-0.6.31-20.el7.i686.rpm avahi-0.6.31-20.el7.x86_64.rpm avahi-autoipd-0.6.31-20.el7.x86_64.rpm avahi-debuginfo-0.6.31-20.el7.i686.rpm avahi-debuginfo-0.6.31-20.el7.x86_64.rpm avahi-glib-0.6.31-20.el7.i686.rpm avahi-glib-0.6.31-20.el7.x86_64.rpm avahi-gobject-0.6.31-20.el7.i686.rpm avahi-gobject-0.6.31-20.el7.x86_64.rpm avahi-libs-0.6.31-20.el7.i686.rpm avahi-libs-0.6.31-20.el7.x86_64.rpm avahi-ui-gtk3-0.6.31-20.el7.i686.rpm avahi-ui-gtk3-0.6.31-20.el7.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64: avahi-compat-howl-0.6.31-20.el7.i686.rpm avahi-compat-howl-0.6.31-20.el7.x86_64.rpm avahi-compat-howl-devel-0.6.31-20.el7.i686.rpm avahi-compat-howl-devel-0.6.31-20.el7.x86_64.rpm avahi-compat-libdns_sd-0.6.31-20.el7.i686.rpm avahi-compat-libdns_sd-0.6.31-20.el7.x86_64.rpm avahi-compat-libdns_sd-devel-0.6.31-20.el7.i686.rpm avahi-compat-libdns_sd-devel-0.6.31-20.el7.x86_64.rpm avahi-debuginfo-0.6.31-20.el7.i686.rpm avahi-debuginfo-0.6.31-20.el7.x86_64.rpm avahi-devel-0.6.31-20.el7.i686.rpm avahi-devel-0.6.31-20.el7.x86_64.rpm avahi-dnsconfd-0.6.31-20.el7.x86_64.rpm avahi-glib-devel-0.6.31-20.el7.i686.rpm avahi-glib-devel-0.6.31-20.el7.x86_64.rpm

Read the Full Advisory


Severity
low
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2020:1176-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:1176
Issue date: 2020-03-31

Topic

An update for avahi is now available for Red Hat Enterprise Linux 7.Red Hat Product Security has rated this update as having a security impactof Low. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory network security update Red Hat Enterprise Linux low impact avahi service discovery

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

Bugs Fixed

1426712 - CVE-2017-6519 avahi: Multicast DNS responds to unicast queries outside of local network

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