{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2023-39975 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2023-39975 is a high-severity use after free vulnerability in Mit Kerberos 5, published on 16 Aug 2023. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-39975 and fix it if it is affected.\n\nWhat it is: CVE-2023-39975 is a high-severity use after free vulnerability in Mit Kerberos 5, published on 16 Aug 2023. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2023-39975 in the wild and no public exploit code.\n\nAffected product: Mit Kerberos 5. 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-2023-39975/ (Markdown: https://insights.sbomify.com/CVE-2023-39975/index.md)","id":"CVE-2023-39975","markdown":"https://insights.sbomify.com/CVE-2023-39975/index.md","name":"CVE-2023-39975","record":{"aliases":["CLSA-2024-1718787475","GHSA-4grv-wgvh-8x82","openSUSE-SU-2024:13527-1"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["denial_of_service","code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Kerberos authentication server","requires_auth":"low_privilege","summary":"An authenticated user can trigger a double free in MIT Kerberos, potentially causing a denial of service or arbitrary code execution.","user_interaction":"not_required","vuln_class":"use_after_free"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"kerberos_5","vendor":"mit"}],"cvss":{"score":8.8,"severity":"high","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-415","name":"Double Free"}],"description":"kdc/do_tgs_req.c in MIT Kerberos 5 (aka krb5) 1.21 before 1.21.2 has a double free that is reachable if an authenticated user can trigger an authorization-data handling failure. Incorrect data is copied from one ticket to another.","ecosystems":["openSUSE:Tumbleweed"],"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":"Use after free in n/a","id":"CVE-2023-39975","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"mit:kerberos_5","products":["mit:kerberos_5"],"type":"use_after_free","year":"2023"},"n_packages":1,"n_references":6,"next":{"headline":"Memory corruption in n/a","id":"CVE-2023-39976"},"packages":[{"ecosystem":"openSUSE:Tumbleweed","fixed":["1.21.2-1.1"],"introduced":["0"],"last_affected":[],"package":"krb5","purl":"pkg:rpm/opensuse/krb5\u0026distro=openSUSE%20Tumbleweed","source":"openSUSE-SU-2024:13527-1"}],"prev":{"headline":"Information disclosure in AcyMailing Enterprise component for Joomla","id":"CVE-2023-39974"},"products":["n/a"],"published":"2023-08-16","related":[{"cvss_score":10,"headline":"Use after free in n/a","id":"CVE-2011-0285","kev_date_added":null,"published":"2011-04-15"},{"cvss_score":10,"headline":"Memory corruption in n/a","id":"CVE-2008-0947","kev_date_added":null,"published":"2008-03-19"},{"cvss_score":10,"headline":"Integer overflow in n/a","id":"CVE-2007-5902","kev_date_added":null,"published":"2007-12-06"},{"cvss_score":10,"headline":"Memory corruption in n/a","id":"CVE-2007-4743","kev_date_added":null,"published":"2007-09-06"},{"cvss_score":10,"headline":"Memory corruption in n/a","id":"CVE-2007-3999","kev_date_added":null,"published":"2007-09-05"},{"cvss_score":10,"headline":"Missing authorization in n/a","id":"CVE-2000-0514","kev_date_added":null,"published":"2000-10-13"},{"cvss_score":9.8,"headline":"Memory corruption in krb5 1.5","id":"CVE-2017-15088","kev_date_added":null,"published":"2017-11-23"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"openSUSE"},{"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":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-02-25","vendors":["n/a"]},"summary":"An authenticated user can trigger a double free in MIT Kerberos, potentially causing a denial of service or arbitrary code execution.","url":"https://insights.sbomify.com/CVE-2023-39975/"}