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

red hat
Calendar Grey April 28, 2020
Dist Redhat Esm H88
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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