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====================================================================                   Red Hat Security Advisory

Synopsis:          Low: dnsmasq security, bug fix, and enhancement update
Advisory ID:       RHSA-2020:1715-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2020:1715
Issue date:        2020-04-28
CVE Names:         CVE-2019-14834 
====================================================================
1. Summary:

An update for dnsmasq is now available for Red Hat Enterprise Linux 8.

Red Hat Product Security has rated this update as having a security impact
of Low. 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 AppStream (v. 8) - aarch64, ppc64le, s390x, x86_64

3. Description:

The dnsmasq packages contain Dnsmasq, a lightweight DNS (Domain Name
Server) forwarder and DHCP (Dynamic Host Configuration Protocol) server.

Security Fix(es):

* dnsmasq: memory leak in the create_helper() function in /src/helper.c
(CVE-2019-14834)

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 8.2 Release Notes linked from the References section.

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/):

1700916 - dnsmasq does not reply to non-recursive queries with local data
1746411 - dhcp_lease_time doesn´t return time
1749092 - [RHEL-8] Change dhcp_release to use default address when no IP subnet matches
1764425 - CVE-2019-14834 dnsmasq: memory leak in the create_helper() function in /src/helper.c
1779187 - Can't PXE/iPXE boot with dnsmasq and DHCPv6

6. Package List:

Red Hat Enterprise Linux AppStream (v. 8):

Source:
dnsmasq-2.79-11.el8.src.rpm

aarch64:
dnsmasq-2.79-11.el8.aarch64.rpm
dnsmasq-debuginfo-2.79-11.el8.aarch64.rpm
dnsmasq-debugsource-2.79-11.el8.aarch64.rpm
dnsmasq-utils-2.79-11.el8.aarch64.rpm
dnsmasq-utils-debuginfo-2.79-11.el8.aarch64.rpm

ppc64le:
dnsmasq-2.79-11.el8.ppc64le.rpm
dnsmasq-debuginfo-2.79-11.el8.ppc64le.rpm
dnsmasq-debugsource-2.79-11.el8.ppc64le.rpm
dnsmasq-utils-2.79-11.el8.ppc64le.rpm
dnsmasq-utils-debuginfo-2.79-11.el8.ppc64le.rpm

s390x:
dnsmasq-2.79-11.el8.s390x.rpm
dnsmasq-debuginfo-2.79-11.el8.s390x.rpm
dnsmasq-debugsource-2.79-11.el8.s390x.rpm
dnsmasq-utils-2.79-11.el8.s390x.rpm
dnsmasq-utils-debuginfo-2.79-11.el8.s390x.rpm

x86_64:
dnsmasq-2.79-11.el8.x86_64.rpm
dnsmasq-debuginfo-2.79-11.el8.x86_64.rpm
dnsmasq-debugsource-2.79-11.el8.x86_64.rpm
dnsmasq-utils-2.79-11.el8.x86_64.rpm
dnsmasq-utils-debuginfo-2.79-11.el8.x86_64.rpm

These packages are GPG signed by Red Hat for security.  Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2019-14834
https://access.redhat.com/security/updates/classification/#low
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.2_release_notes/index

8. Contact:

The Red Hat security contact is . More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2020 Red Hat, Inc.
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