# CVE-2021-3445: dnf: dnf is a package manager that allows users to manage packages on their systems CVE-2021-3445 is fixed in 17 products on 1 platform, first by libdnf1 0.55.2-6, released May 19, 2021. It is not reported as exploited. Patch Radar priority: High. - Web page: https://patchblox.com/security/cve/CVE-2021-3445 - Priority: High - CVSS: 8.8 (Moderate) - EPSS: 0.0112 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: May 19, 2021 ## Description dnf is a package manager that allows users to manage packages on their systems. It supports RPMs, modules and comps groups & environments. Security Fix(es): * libdnf: Signature verification bypass via signature placed in the main RPM header (CVE-2021-3445) 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 8.5 Release Notes linked from the References section. ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Linux | dnf RHEL 8 | 0:4.7.0-4.el8 | [RHSA-2021:4464](https://patchblox.com/security/data/fix/linux/rhsa-2021-4464.md) | Nov 9, 2021 | | Linux | dnf ol 8 | 0:4.7.0-4.0.1.el8 | [ELSA-2021-4464](https://patchblox.com/security/data/fix/linux/elsa-2021-4464.md) | Nov 16, 2021 | | Linux | dnf rocky 8 | 0:4.7.0-4.el8 | [RLSA-2021:4464](https://patchblox.com/security/data/fix/linux/rlsa-2021-4464.md) | Nov 9, 2021 | | Linux | dnf-automatic RHEL 8 | 0:4.7.0-4.el8 | [RHSA-2021:4464](https://patchblox.com/security/data/fix/linux/rhsa-2021-4464.md) | Nov 9, 2021 | | Linux | dnf-automatic ol 8 | 0:4.7.0-4.0.1.el8 | [ELSA-2021-4464](https://patchblox.com/security/data/fix/linux/elsa-2021-4464.md) | Nov 16, 2021 | | Linux | dnf-data RHEL 8 | 0:4.7.0-4.el8 | [RHSA-2021:4464](https://patchblox.com/security/data/fix/linux/rhsa-2021-4464.md) | Nov 9, 2021 | | Linux | dnf-data ol 8 | 0:4.7.0-4.0.1.el8 | [ELSA-2021-4464](https://patchblox.com/security/data/fix/linux/elsa-2021-4464.md) | Nov 16, 2021 | | Linux | dnf-plugins-core RHEL 8 | 0:4.0.21-3.el8 | [RHSA-2021:4464](https://patchblox.com/security/data/fix/linux/rhsa-2021-4464.md) | Nov 9, 2021 | | Linux | dnf-plugins-core ol 8 | 0:4.0.21-3.0.1.el8 | [ELSA-2021-4464](https://patchblox.com/security/data/fix/linux/elsa-2021-4464.md) | Nov 16, 2021 | | Linux | dnf-plugins-core rocky 8 | 0:4.0.21-3.el8 | [RLSA-2021:4464](https://patchblox.com/security/data/fix/linux/rlsa-2021-4464.md) | Nov 9, 2021 | | Linux | libdnf RHEL 8 | 0:0.63.0-3.el8 | [RHSA-2021:4464](https://patchblox.com/security/data/fix/linux/rhsa-2021-4464.md) | Nov 9, 2021 | | Linux | libdnf ol 8 | 0:0.63.0-3.0.1.el8 | [ELSA-2021-4464](https://patchblox.com/security/data/fix/linux/elsa-2021-4464.md) | Nov 16, 2021 | | Linux | libdnf rocky 8 | 0:0.63.0-3.el8 | [RLSA-2021:4464](https://patchblox.com/security/data/fix/linux/rlsa-2021-4464.md) | Nov 9, 2021 | | Linux | libdnf-devel RHEL 8 | 0:0.63.0-3.el8 | [RHSA-2021:4464](https://patchblox.com/security/data/fix/linux/rhsa-2021-4464.md) | Nov 9, 2021 | | Linux | libdnf-devel almalinux 8 | 0.63.0-3.el8 | [ALSA-2021:4464](https://patchblox.com/security/data/fix/linux/alsa-2021-4464.md) | Nov 9, 2021 | | Linux | libdnf-devel ol 8 | 0:0.63.0-3.0.1.el8 | [ELSA-2021-4464](https://patchblox.com/security/data/fix/linux/elsa-2021-4464.md) | Nov 16, 2021 | | Linux | libdnf1 Ubuntu 22.04.1 LTS (jammy) | 0.55.2-6 | [libdnf1 0.55.2-6](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libdnf1-0.55.2-6.md) | May 19, 2021 | | Linux | libdnf2 Ubuntu 22.04.1 LTS (jammy) | 0.55.2-6 | [libdnf2 0.55.2-6](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libdnf2-0.55.2-6.md) | May 19, 2021 | | Linux | libdnf2-common Ubuntu 22.04.1 LTS (jammy) | 0.55.2-6 | [libdnf2-common 0.55.2-6](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libdnf2-common-0.55.2-6.md) | May 19, 2021 | | Linux | python3-dnf RHEL 8 | 0:4.7.0-4.el8 | [RHSA-2021:4464](https://patchblox.com/security/data/fix/linux/rhsa-2021-4464.md) | Nov 9, 2021 | | Linux | python3-dnf ol 8 | 0:4.7.0-4.0.1.el8 | [ELSA-2021-4464](https://patchblox.com/security/data/fix/linux/elsa-2021-4464.md) | Nov 16, 2021 | | Linux | python3-dnf-plugin-post-transaction-actions RHEL 8 | 0:4.0.21-3.el8 | [RHSA-2021:4464](https://patchblox.com/security/data/fix/linux/rhsa-2021-4464.md) | Nov 9, 2021 | | Linux | python3-dnf-plugin-post-transaction-actions ol 8 | 0:4.0.21-3.0.1.el8 | [ELSA-2021-4464](https://patchblox.com/security/data/fix/linux/elsa-2021-4464.md) | Nov 16, 2021 | | Linux | python3-dnf-plugin-versionlock RHEL 8 | 0:4.0.21-3.el8 | [RHSA-2021:4464](https://patchblox.com/security/data/fix/linux/rhsa-2021-4464.md) | Nov 9, 2021 | | Linux | python3-dnf-plugin-versionlock ol 8 | 0:4.0.21-3.0.1.el8 | [ELSA-2021-4464](https://patchblox.com/security/data/fix/linux/elsa-2021-4464.md) | Nov 16, 2021 | | Linux | python3-dnf-plugins-core RHEL 8 | 0:4.0.21-3.el8 | [RHSA-2021:4464](https://patchblox.com/security/data/fix/linux/rhsa-2021-4464.md) | Nov 9, 2021 | | Linux | python3-dnf-plugins-core ol 8 | 0:4.0.21-3.0.1.el8 | [ELSA-2021-4464](https://patchblox.com/security/data/fix/linux/elsa-2021-4464.md) | Nov 16, 2021 | | Linux | python3-hawkey RHEL 8 | 0:0.63.0-3.el8 | [RHSA-2021:4464](https://patchblox.com/security/data/fix/linux/rhsa-2021-4464.md) | Nov 9, 2021 | | Linux | python3-hawkey Ubuntu 22.04.1 LTS (jammy) | 0.55.2-6 | [python3-hawkey 0.55.2-6](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-python3-hawkey-0.55.2-6.md) | May 19, 2021 | | Linux | python3-hawkey ol 8 | 0:0.63.0-3.0.1.el8 | [ELSA-2021-4464](https://patchblox.com/security/data/fix/linux/elsa-2021-4464.md) | Nov 16, 2021 | | Linux | python3-libdnf RHEL 8 | 0:0.63.0-3.el8 | [RHSA-2021:4464](https://patchblox.com/security/data/fix/linux/rhsa-2021-4464.md) | Nov 9, 2021 | | Linux | python3-libdnf Ubuntu 22.04.1 LTS (jammy) | 0.55.2-6 | [python3-libdnf 0.55.2-6](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-python3-libdnf-0.55.2-6.md) | May 19, 2021 | | Linux | python3-libdnf ol 8 | 0:0.63.0-3.0.1.el8 | [ELSA-2021-4464](https://patchblox.com/security/data/fix/linux/elsa-2021-4464.md) | Nov 16, 2021 | | Linux | yum RHEL 8 | 0:4.7.0-4.el8 | [RHSA-2021:4464](https://patchblox.com/security/data/fix/linux/rhsa-2021-4464.md) | Nov 9, 2021 | | Linux | yum ol 8 | 0:4.7.0-4.0.1.el8 | [ELSA-2021-4464](https://patchblox.com/security/data/fix/linux/elsa-2021-4464.md) | Nov 16, 2021 | | Linux | yum-utils RHEL 8 | 0:4.0.21-3.el8 | [RHSA-2021:4464](https://patchblox.com/security/data/fix/linux/rhsa-2021-4464.md) | Nov 9, 2021 | | Linux | yum-utils ol 8 | 0:4.0.21-3.0.1.el8 | [ELSA-2021-4464](https://patchblox.com/security/data/fix/linux/elsa-2021-4464.md) | Nov 16, 2021 | --- Data as of 2026-11-08T06:59:42Z UTC. 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