- Issued:
- 2023-11-14
- Updated:
- 2023-11-14
RHSA-2023:7046 - Moderate: dnsmasq security and bug fix update
Synopsis
Moderate: dnsmasq security and bug fix update
Type/Severity
Security Advisory Moderate
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 impact of Moderate. 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.
Description
The dnsmasq packages contain Dnsmasq, a lightweight DNS (Domain Name Server) forwarder and DHCP (Dynamic Host Configuration Protocol) server.
Security Fix(es):
- dnsmasq: default maximum EDNS.0 UDP packet size was set to 4096 but should be 1232 (CVE-2023-28450)
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 8.9 Release Notes linked from the References section.
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
Affected Products
| Product | Version | Arch |
|---|---|---|
| Red Hat Enterprise Linux for x86_64 | 8 | x86_64 |
| Red Hat Enterprise Linux for x86_64 - Extended Life Cycle | 8.10 | x86_64 |
| Red Hat Enterprise Linux for Power, little endian | 8 | ppc64le |
| Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle | 8.10 | ppc64le |
| Red Hat Enterprise Linux for IBM z Systems | 8 | s390x |
| Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle | 8.10 | s390x |
| Red Hat Enterprise Linux for ARM 64 | 8 | aarch64 |
| Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle | 8.10 | aarch64 |
Updated Packages
- dnsmasq-utils-2.79-31.el8.aarch64.rpm
- dnsmasq-2.79-31.el8.x86_64.rpm
- dnsmasq-2.79-31.el8.aarch64.rpm
- dnsmasq-2.79-31.el8.ppc64le.rpm
- dnsmasq-utils-debuginfo-2.79-31.el8.ppc64le.rpm
- dnsmasq-utils-2.79-31.el8.ppc64le.rpm
- dnsmasq-debugsource-2.79-31.el8.s390x.rpm
- dnsmasq-utils-2.79-31.el8.s390x.rpm
- dnsmasq-utils-2.79-31.el8.x86_64.rpm
- dnsmasq-debugsource-2.79-31.el8.x86_64.rpm
- dnsmasq-2.79-31.el8.s390x.rpm
- dnsmasq-debuginfo-2.79-31.el8.x86_64.rpm
- dnsmasq-debuginfo-2.79-31.el8.s390x.rpm
- dnsmasq-debuginfo-2.79-31.el8.ppc64le.rpm
- dnsmasq-debuginfo-2.79-31.el8.aarch64.rpm
- dnsmasq-utils-debuginfo-2.79-31.el8.x86_64.rpm
- dnsmasq-debugsource-2.79-31.el8.ppc64le.rpm
- dnsmasq-2.79-31.el8.src.rpm
- dnsmasq-utils-debuginfo-2.79-31.el8.aarch64.rpm
- dnsmasq-utils-debuginfo-2.79-31.el8.s390x.rpm
- dnsmasq-debugsource-2.79-31.el8.aarch64.rpm
Fixes
- This content is not included.BZ - 2178948
- This content is not included.BZ - 2186481
- This content is not included.BZ - 2207798
- This content is not included.BZ - 2233542
CVEs
References
- https://access.redhat.com/security/updates/classification/#moderate
- https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.9_release_notes/index
Additional information
- The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.
- Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.