# CVE-2022-0934: dnsmasq: The dnsmasq packages contain Dnsmasq, a lightweight DNS (Domain Name Server) forwarder and DHCP (Dynamic Host Configu... CVE-2022-0934 is fixed in 7 products on 1 platform, first by dnsmasq 2.79-1ubuntu0.6, released April 6, 2022. It is not reported as exploited. Patch Radar priority: High. - Web page: https://patchblox.com/security/cve/CVE-2022-0934 - Priority: High - CVSS: 7.5 (Moderate) - EPSS: 0.0264 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: Apr 6, 2022 ## Description The dnsmasq packages contain Dnsmasq, a lightweight DNS (Domain Name Server) forwarder and DHCP (Dynamic Host Configuration Protocol) server. Security Fix(es): * dnsmasq: Heap use after free in dhcp6_no_relay (CVE-2022-0934) 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 8.7 Release Notes linked from the References section. ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Linux | dnsmasq Debian 11.6 (bullseye) | 2.85-1+deb11u1 | [DLA-3974-1](https://patchblox.com/security/data/fix/linux/dla-3974-1.md) | Nov 29, 2024 | | Linux | dnsmasq Debian 12.15 (bookworm) | 2.87-1 | [DEBIAN-CVE-2022-0934](https://patchblox.com/security/data/fix/linux/debian-cve-2022-0934.md) | Aug 29, 2022 | | Linux | dnsmasq Debian 13.5 (trixie) | 2.87-1 | [DEBIAN-CVE-2022-0934](https://patchblox.com/security/data/fix/linux/debian-cve-2022-0934.md) | Aug 29, 2022 | | Linux | dnsmasq Debian 14 | 2.87-1 | [DEBIAN-CVE-2022-0934](https://patchblox.com/security/data/fix/linux/debian-cve-2022-0934.md) | Aug 29, 2022 | | Linux | dnsmasq RHEL 8 | 0:2.79-24.el8 | [RHSA-2022:7633](https://patchblox.com/security/data/fix/linux/rhsa-2022-7633.md) | Nov 8, 2022 | | Linux | dnsmasq RHEL 9 | 0:2.85-5.el9 | [RHSA-2022:8070](https://patchblox.com/security/data/fix/linux/rhsa-2022-8070.md) | Nov 15, 2022 | | Linux | dnsmasq Ubuntu 18.04.6 LTS (bionic) | 2.79-1ubuntu0.6 | [dnsmasq 2.79-1ubuntu0.6](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-dnsmasq-2.79-1ubuntu0.6.md) | Apr 6, 2022 | | Linux | dnsmasq Ubuntu 20.04 LTS (focal) | 2.80-1.1ubuntu1.5 | [dnsmasq 2.80-1.1ubuntu1.5](https://patchblox.com/security/data/fix/linux/ubuntu-focal-dnsmasq-2.80-1.1ubuntu1.5.md) | Apr 6, 2022 | | Linux | dnsmasq Ubuntu 22.04.1 LTS (jammy) | 2.86-1.1ubuntu0.1 | [dnsmasq 2.86-1.1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-dnsmasq-2.86-1.1ubuntu0.1.md) | Apr 6, 2022 | | Linux | dnsmasq almalinux 8 | 2.79-24.el8 | [ALSA-2022:7633](https://patchblox.com/security/data/fix/linux/alsa-2022-7633.md) | Nov 8, 2022 | | Linux | dnsmasq almalinux 9 | 2.85-5.el9 | [ALSA-2022:8070](https://patchblox.com/security/data/fix/linux/alsa-2022-8070.md) | Nov 15, 2022 | | Linux | dnsmasq amzn 2023 | 2.86-10.amzn2023.0.2 | [ALAS2023-2023-039](https://patchblox.com/security/data/fix/linux/alas2023-2023-039.md) | Feb 17, 2023 | | Linux | dnsmasq ol 8 | 0:2.79-24.el8 | [ELSA-2022-7633](https://patchblox.com/security/data/fix/linux/elsa-2022-7633.md) | Nov 15, 2022 | | Linux | dnsmasq ol 9 | 0:2.85-5.el9 | [ELSA-2022-8070](https://patchblox.com/security/data/fix/linux/elsa-2022-8070.md) | Nov 22, 2022 | | Linux | dnsmasq rocky 8 | 0:2.79-24.el8 | [RLSA-2022:7633](https://patchblox.com/security/data/fix/linux/rlsa-2022-7633.md) | Nov 8, 2022 | | Linux | dnsmasq rocky 9 | 0:2.85-5.el9 | [RLSA-2022:8070](https://patchblox.com/security/data/fix/linux/rlsa-2022-8070.md) | Nov 15, 2022 | | Linux | dnsmasq-base Ubuntu 18.04.6 LTS (bionic) | 2.79-1ubuntu0.6 | [dnsmasq-base 2.79-1ubuntu0.6](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-dnsmasq-base-2.79-1ubuntu0.6.md) | Apr 6, 2022 | | Linux | dnsmasq-base Ubuntu 20.04 LTS (focal) | 2.80-1.1ubuntu1.5 | [dnsmasq-base 2.80-1.1ubuntu1.5](https://patchblox.com/security/data/fix/linux/ubuntu-focal-dnsmasq-base-2.80-1.1ubuntu1.5.md) | Apr 6, 2022 | | Linux | dnsmasq-base Ubuntu 22.04.1 LTS (jammy) | 2.86-1.1ubuntu0.1 | [dnsmasq-base 2.86-1.1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-dnsmasq-base-2.86-1.1ubuntu0.1.md) | Apr 6, 2022 | | Linux | dnsmasq-base-lua Ubuntu 18.04.6 LTS (bionic) | 2.79-1ubuntu0.6 | [dnsmasq-base-lua 2.79-1ubuntu0.6](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-dnsmasq-base-lua-2.79-1ubuntu0.6.md) | Apr 6, 2022 | | Linux | dnsmasq-base-lua Ubuntu 20.04 LTS (focal) | 2.80-1.1ubuntu1.5 | [dnsmasq-base-lua 2.80-1.1ubuntu1.5](https://patchblox.com/security/data/fix/linux/ubuntu-focal-dnsmasq-base-lua-2.80-1.1ubuntu1.5.md) | Apr 6, 2022 | | Linux | dnsmasq-base-lua Ubuntu 22.04.1 LTS (jammy) | 2.86-1.1ubuntu0.1 | [dnsmasq-base-lua 2.86-1.1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-dnsmasq-base-lua-2.86-1.1ubuntu0.1.md) | Apr 6, 2022 | | Linux | dnsmasq-debuginfo amzn 2023 | 2.86-10.amzn2023.0.2 | [ALAS2023-2023-039](https://patchblox.com/security/data/fix/linux/alas2023-2023-039.md) | Feb 17, 2023 | | Linux | dnsmasq-debugsource amzn 2023 | 2.86-10.amzn2023.0.2 | [ALAS2023-2023-039](https://patchblox.com/security/data/fix/linux/alas2023-2023-039.md) | Feb 17, 2023 | | Linux | dnsmasq-utils RHEL 8 | 0:2.79-24.el8 | [RHSA-2022:7633](https://patchblox.com/security/data/fix/linux/rhsa-2022-7633.md) | Nov 8, 2022 | | Linux | dnsmasq-utils RHEL 9 | 0:2.85-5.el9 | [RHSA-2022:8070](https://patchblox.com/security/data/fix/linux/rhsa-2022-8070.md) | Nov 15, 2022 | | Linux | dnsmasq-utils Ubuntu 18.04.6 LTS (bionic) | 2.79-1ubuntu0.6 | [dnsmasq-utils 2.79-1ubuntu0.6](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-dnsmasq-utils-2.79-1ubuntu0.6.md) | Apr 6, 2022 | | Linux | dnsmasq-utils Ubuntu 20.04 LTS (focal) | 2.80-1.1ubuntu1.5 | [dnsmasq-utils 2.80-1.1ubuntu1.5](https://patchblox.com/security/data/fix/linux/ubuntu-focal-dnsmasq-utils-2.80-1.1ubuntu1.5.md) | Apr 6, 2022 | | Linux | dnsmasq-utils Ubuntu 22.04.1 LTS (jammy) | 2.86-1.1ubuntu0.1 | [dnsmasq-utils 2.86-1.1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-dnsmasq-utils-2.86-1.1ubuntu0.1.md) | Apr 6, 2022 | | Linux | dnsmasq-utils almalinux 8 | 2.79-24.el8 | [ALSA-2022:7633](https://patchblox.com/security/data/fix/linux/alsa-2022-7633.md) | Nov 8, 2022 | | Linux | dnsmasq-utils almalinux 9 | 2.85-5.el9 | [ALSA-2022:8070](https://patchblox.com/security/data/fix/linux/alsa-2022-8070.md) | Nov 15, 2022 | | Linux | dnsmasq-utils amzn 2023 | 2.86-10.amzn2023.0.2 | [ALAS2023-2023-039](https://patchblox.com/security/data/fix/linux/alas2023-2023-039.md) | Feb 17, 2023 | | Linux | dnsmasq-utils ol 8 | 0:2.79-24.el8 | [ELSA-2022-7633](https://patchblox.com/security/data/fix/linux/elsa-2022-7633.md) | Nov 15, 2022 | | Linux | dnsmasq-utils ol 9 | 0:2.85-5.el9 | [ELSA-2022-8070](https://patchblox.com/security/data/fix/linux/elsa-2022-8070.md) | Nov 22, 2022 | | Linux | dnsmasq-utils-debuginfo amzn 2023 | 2.86-10.amzn2023.0.2 | [ALAS2023-2023-039](https://patchblox.com/security/data/fix/linux/alas2023-2023-039.md) | Feb 17, 2023 | --- Data as of 2026-11-08T13:06:02Z UTC. 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