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Red Hat Enterprise Linux 8: RHSA-2020:1715-01 Low: dnsmasq Memory Leak

red hat
Calendar Grey April 28, 2020
Scroller Redhat
New update released for dnsmasq on Red Hat Enterprise Linux 8, classified as low severity, which resolves a memory leak vulnerability.
An update for dnsmasq is now available for Red Hat Enterprise Linux 8

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 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.

Topics%20covered

Topics Covered

security advisory Red Hat bug fix low severity dnsmasq

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

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/


Severity
low
Lowest
Low
Medium
High
Critical

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

Topic

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 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 Red Hat bug fix low severity dnsmasq

Relevant Releases Architectures

Red Hat Enterprise Linux AppStream (v. 8) - aarch64, ppc64le, s390x, x86_64

Bugs Fixed

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

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