{"answers":{"affected":"It affects 3 products.","exploited":"There is no known exploitation of CVE-2021-3445 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2021-3445 is a high-severity code injection vulnerability in Fedoraproject Fedora, published on 19 May 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2021-3445 and fix it if it is affected.\n\nWhat it is: CVE-2021-3445 is a high-severity code injection vulnerability in Fedoraproject Fedora, published on 19 May 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2021-3445 in the wild and no public exploit code.\n\nAffected product: Fedoraproject Fedora. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2021-3445/ (Markdown: https://insights.sbomify.com/CVE-2021-3445/index.md)","id":"CVE-2021-3445","markdown":"https://insights.sbomify.com/CVE-2021-3445/index.md","name":"CVE-2021-3445","record":{"aliases":["ALSA-2021:4464","CLSA-2022-1646666491","CLSA-2022-1646666523","CLSA-2026-1779434064","DEBIAN-CVE-2021-3445","GHSA-jrcf-96j2-jpvh","OESA-2021-1224","RHSA-2021:4464","RLSA-2021:4464","UBUNTU-CVE-2021-3445","openSUSE-SU-2024:10934-1"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"libdnf package manager","requires_auth":"none","summary":"Attackers can execute arbitrary code by altering RPM package headers and tricking users into installing them via libdnf.","user_interaction":"required","vuln_class":"code_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat","cpe":[{"product":"fedora","vendor":"fedoraproject"},{"product":"enterprise_linux","vendor":"redhat"},{"product":"libdnf","vendor":"rpm"}],"cvss":{"score":7.5,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-347","name":"Improper Verification of Cryptographic Signature"}],"description":"A flaw was found in libdnf's signature verification functionality in versions before 0.60.1. This flaw allows an attacker to achieve code execution if they can alter the header information of an RPM package and then trick a user or system into installing it. The highest risk of this vulnerability is to confidentiality, integrity, as well as system availability.","ecosystems":["AlmaLinux:8","Red Hat:enterprise_linux:8::baseos","Red Hat:enterprise_linux:8::crb","Rocky Linux:8"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Code injection in libdnf","id":"CVE-2021-3445","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"fedoraproject:fedora","products":["fedoraproject:fedora","redhat:enterprise_linux"],"type":"code_injection","year":"2021"},"n_packages":26,"n_references":3,"next":{"headline":"Weak cryptography in libtpms","id":"CVE-2021-3446"},"packages":[{"ecosystem":"AlmaLinux:8","fixed":["0.63.0-3.el8"],"introduced":["0"],"last_affected":[],"package":"libdnf-devel","purl":"pkg:rpm/almalinux/libdnf-devel","source":"ALSA-2021:4464"},{"ecosystem":"Red Hat:enterprise_linux:8::baseos","fixed":["0:4.7.0-4.el8"],"introduced":["0"],"last_affected":[],"package":"dnf","purl":"pkg:rpm/redhat/dnf","source":"RHSA-2021:4464"},{"ecosystem":"Red Hat:enterprise_linux:8::baseos","fixed":["0:4.7.0-4.el8"],"introduced":["0"],"last_affected":[],"package":"dnf-automatic","purl":"pkg:rpm/redhat/dnf-automatic","source":"RHSA-2021:4464"},{"ecosystem":"Red Hat:enterprise_linux:8::baseos","fixed":["0:4.7.0-4.el8"],"introduced":["0"],"last_affected":[],"package":"dnf-data","purl":"pkg:rpm/redhat/dnf-data","source":"RHSA-2021:4464"},{"ecosystem":"Red Hat:enterprise_linux:8::baseos","fixed":["0:4.0.21-3.el8"],"introduced":["0"],"last_affected":[],"package":"dnf-plugins-core","purl":"pkg:rpm/redhat/dnf-plugins-core","source":"RHSA-2021:4464"},{"ecosystem":"Red Hat:enterprise_linux:8::baseos","fixed":["0:0.63.0-3.el8"],"introduced":["0"],"last_affected":[],"package":"libdnf","purl":"pkg:rpm/redhat/libdnf","source":"RHSA-2021:4464"},{"ecosystem":"Red Hat:enterprise_linux:8::baseos","fixed":["0:0.63.0-3.el8"],"introduced":["0"],"last_affected":[],"package":"libdnf-debuginfo","purl":"pkg:rpm/redhat/libdnf-debuginfo","source":"RHSA-2021:4464"},{"ecosystem":"Red Hat:enterprise_linux:8::baseos","fixed":["0:0.63.0-3.el8"],"introduced":["0"],"last_affected":[],"package":"libdnf-debugsource","purl":"pkg:rpm/redhat/libdnf-debugsource","source":"RHSA-2021:4464"},{"ecosystem":"Red Hat:enterprise_linux:8::baseos","fixed":["0:4.7.0-4.el8"],"introduced":["0"],"last_affected":[],"package":"python3-dnf","purl":"pkg:rpm/redhat/python3-dnf","source":"RHSA-2021:4464"},{"ecosystem":"Red Hat:enterprise_linux:8::baseos","fixed":["0:4.0.21-3.el8"],"introduced":["0"],"last_affected":[],"package":"python3-dnf-plugin-post-transaction-actions","purl":"pkg:rpm/redhat/python3-dnf-plugin-post-transaction-actions","source":"RHSA-2021:4464"},{"ecosystem":"Red Hat:enterprise_linux:8::baseos","fixed":["0:4.0.21-3.el8"],"introduced":["0"],"last_affected":[],"package":"python3-dnf-plugin-versionlock","purl":"pkg:rpm/redhat/python3-dnf-plugin-versionlock","source":"RHSA-2021:4464"},{"ecosystem":"Red Hat:enterprise_linux:8::baseos","fixed":["0:4.0.21-3.el8"],"introduced":["0"],"last_affected":[],"package":"python3-dnf-plugins-core","purl":"pkg:rpm/redhat/python3-dnf-plugins-core","source":"RHSA-2021:4464"},{"ecosystem":"Red Hat:enterprise_linux:8::baseos","fixed":["0:0.63.0-3.el8"],"introduced":["0"],"last_affected":[],"package":"python3-hawkey","purl":"pkg:rpm/redhat/python3-hawkey","source":"RHSA-2021:4464"},{"ecosystem":"Red Hat:enterprise_linux:8::baseos","fixed":["0:0.63.0-3.el8"],"introduced":["0"],"last_affected":[],"package":"python3-hawkey-debuginfo","purl":"pkg:rpm/redhat/python3-hawkey-debuginfo","source":"RHSA-2021:4464"},{"ecosystem":"Red Hat:enterprise_linux:8::baseos","fixed":["0:0.63.0-3.el8"],"introduced":["0"],"last_affected":[],"package":"python3-libdnf","purl":"pkg:rpm/redhat/python3-libdnf","source":"RHSA-2021:4464"},{"ecosystem":"Red Hat:enterprise_linux:8::baseos","fixed":["0:0.63.0-3.el8"],"introduced":["0"],"last_affected":[],"package":"python3-libdnf-debuginfo","purl":"pkg:rpm/redhat/python3-libdnf-debuginfo","source":"RHSA-2021:4464"},{"ecosystem":"Red Hat:enterprise_linux:8::baseos","fixed":["0:4.7.0-4.el8"],"introduced":["0"],"last_affected":[],"package":"yum","purl":"pkg:rpm/redhat/yum","source":"RHSA-2021:4464"},{"ecosystem":"Red Hat:enterprise_linux:8::baseos","fixed":["0:4.0.21-3.el8"],"introduced":["0"],"last_affected":[],"package":"yum-utils","purl":"pkg:rpm/redhat/yum-utils","source":"RHSA-2021:4464"},{"ecosystem":"Red Hat:enterprise_linux:8::crb","fixed":["0:0.63.0-3.el8"],"introduced":["0"],"last_affected":[],"package":"libdnf-debuginfo","purl":"pkg:rpm/redhat/libdnf-debuginfo","source":"RHSA-2021:4464"},{"ecosystem":"Red Hat:enterprise_linux:8::crb","fixed":["0:0.63.0-3.el8"],"introduced":["0"],"last_affected":[],"package":"libdnf-debugsource","purl":"pkg:rpm/redhat/libdnf-debugsource","source":"RHSA-2021:4464"},{"ecosystem":"Red Hat:enterprise_linux:8::crb","fixed":["0:0.63.0-3.el8"],"introduced":["0"],"last_affected":[],"package":"libdnf-devel","purl":"pkg:rpm/redhat/libdnf-devel","source":"RHSA-2021:4464"},{"ecosystem":"Red Hat:enterprise_linux:8::crb","fixed":["0:0.63.0-3.el8"],"introduced":["0"],"last_affected":[],"package":"python3-hawkey-debuginfo","purl":"pkg:rpm/redhat/python3-hawkey-debuginfo","source":"RHSA-2021:4464"},{"ecosystem":"Red Hat:enterprise_linux:8::crb","fixed":["0:0.63.0-3.el8"],"introduced":["0"],"last_affected":[],"package":"python3-libdnf-debuginfo","purl":"pkg:rpm/redhat/python3-libdnf-debuginfo","source":"RHSA-2021:4464"},{"ecosystem":"Rocky Linux:8","fixed":["0:4.7.0-4.el8"],"introduced":["0"],"last_affected":[],"package":"dnf","purl":"pkg:rpm/rocky-linux/dnf?distro=rocky-linux-8-5-legacy\u0026epoch=0","source":"RLSA-2021:4464"},{"ecosystem":"Rocky Linux:8","fixed":["0:4.0.21-3.el8"],"introduced":["0"],"last_affected":[],"package":"dnf-plugins-core","purl":"pkg:rpm/rocky-linux/dnf-plugins-core?distro=rocky-linux-8-5-legacy\u0026epoch=0","source":"RLSA-2021:4464"},{"ecosystem":"Rocky Linux:8","fixed":["0:0.63.0-3.el8"],"introduced":["0"],"last_affected":[],"package":"libdnf","purl":"pkg:rpm/rocky-linux/libdnf?distro=rocky-linux-8-5-legacy\u0026epoch=0","source":"RLSA-2021:4464"}],"prev":{"headline":"Linux kernel bpf verifier incorrect mod32 truncation","id":"CVE-2021-3444"},"products":["libdnf"],"published":"2021-05-19","related":[{"cvss_score":9.8,"headline":"PHP-CGI OS Command Injection","id":"CVE-2024-4577","kev_date_added":"2024-06-12","published":"2024-06-09"},{"cvss_score":9.8,"headline":"Grafana Authentication Bypass","id":"CVE-2021-39226","kev_date_added":"2022-08-25","published":"2021-10-05"},{"cvss_score":9.8,"headline":"VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow","id":"CVE-2019-5544","kev_date_added":"2021-11-03","published":"2019-12-06"},{"cvss_score":9.6,"headline":"Google Chromium V8 Type Confusion","id":"CVE-2024-4947","kev_date_added":"2024-05-20","published":"2024-05-15"},{"cvss_score":9.6,"headline":"Google Chromium Visuals Use-After-Free","id":"CVE-2024-4671","kev_date_added":"2024-05-13","published":"2024-05-09"},{"cvss_score":9.6,"headline":"Google Chromium Mojo Insufficient Data Validation","id":"CVE-2022-3075","kev_date_added":"2022-09-08","published":"2022-09-26"},{"cvss_score":9.6,"headline":"Google Chromium Indexed DB API Use-After-Free","id":"CVE-2021-30633","kev_date_added":"2021-11-03","published":"2021-10-08"}],"sources":[{"class":"attribution","licence":"MIT","name":"AlmaLinux","prefix":"ALSA"},{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"Red Hat","prefix":"RHSA"},{"class":"attribution","licence":"BSD","name":"Rocky Linux","prefix":"RLSA"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-03","vendors":["n/a"]},"summary":"Attackers can execute arbitrary code by altering RPM package headers and tricking users into installing them via libdnf.","url":"https://insights.sbomify.com/CVE-2021-3445/"}