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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2020.1511 dnsmasq security, bug fix, and enhancement update 29 April 2020 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: dnsmasq Publisher: Red Hat Operating System: Red Hat Enterprise Linux Server 8 Red Hat Enterprise Linux WS/Desktop 8 Impact/Access: Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2019-14834 Reference: ESB-2020.0579 ESB-2019.4570 Original Bulletin: https://access.redhat.com/errata/RHSA-2020:1715 - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== 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 <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2020 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBXqhV5dzjgjWX9erEAQiJYhAAikb8A4aIuIpOkV6yWs5O4sKl2uwV1yST 539hERDsFs0jKFpMFWL4QZ0sozoRpSTvawwCP8yYIr8k/IrIqM/Rpxn+yeKS6TZo OPVx/fjVdFlMqC73/cWvBuqKVZyz6sjclyAO8ytXcg+fM3ManWn6GVFfXNWYqZWm 8VdExdloiMzj7YCy5p5iq05J/ieVDGO792hVtfrOqmkCSyNc7G9+juJWfSZknj0Q 7vVKuyrK1nOgtd12DUEchXWP4lUskQ99rfgoALagny/MvRjxQC/OqIrbHrIbcI0B nopWlL+RC2T2+e+PCE+uiJ74ivcEmHJX4QSha2ErmHvVIfoeUxpL/drrdorcDEIE 4xZZXAE1ouGoyoqt3REitAUBxKx47n0TwqZcEBgK5xqkkV7+yubvYWovsvXZoqv2 2OUTkV+ZrGpcSpDFNW7g2B5zsgFicQ9y9eOByBtItGm9oW+YAwGeyD2BkL5YaKIg zQ9jBHJBaQLGQB+FNqz3EzgoVpxWKljP9NSHW1ZdQC3gi7CjIV5lq+2hHFxmGYe8 /36djFvZFfPzEowHnm/szb2DmKjhvxSLMRSheGo/OkeOw3SGgur7RvpQoJh8mkHH NSSKKCtgkGTPw31XWx6c71n2ZI6DBJ0GySXGQT1w2SVeo82cH8zjDxhYVKvCl6Pj cQDIyD8MopM= =RHI3 - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. 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