{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2022-44640 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2022-44640 is a critical use after free vulnerability in Samba Samba, published on 25 Dec 2022. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2022-44640 and fix it if it is affected.\n\nWhat it is: CVE-2022-44640 is a critical use after free vulnerability in Samba Samba, published on 25 Dec 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2022-44640 in the wild and no public exploit code.\n\nAffected product: Samba Samba. 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-2022-44640/ (Markdown: https://insights.sbomify.com/CVE-2022-44640/index.md)","id":"CVE-2022-44640","markdown":"https://insights.sbomify.com/CVE-2022-44640/index.md","name":"CVE-2022-44640","record":{"aliases":["ALPINE-CVE-2022-44640","AZL-44388","CLEANSTART-2024-JK21909","DEBIAN-CVE-2022-44640","ECHO-bb12-88ef-d3a9","GHSA-88pm-hfmq-7vv4","OESA-2022-2153","UBUNTU-CVE-2022-44640"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Kerberos KDC","requires_auth":"none","summary":"Remote attackers can execute arbitrary code via an invalid free in the Heimdal KDC ASN.1 codec.","user_interaction":"not_required","vuln_class":"use_after_free"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"heimdal","vendor":"heimdal_project"},{"product":"samba","vendor":"samba"}],"cvss":{"score":9.8,"severity":"critical","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-415","name":"Double Free"}],"description":"Heimdal before 7.7.1 allows remote attackers to execute arbitrary code because of an invalid free in the ASN.1 codec used by the Key Distribution Center (KDC).","ecosystems":[],"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-2022-44640","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"samba:samba","products":["samba:samba"],"type":"use_after_free","year":"2022"},"n_packages":0,"n_references":3,"next":{"headline":"XML external entity in n/a","id":"CVE-2022-44641"},"packages":[],"prev":{"headline":"Integer overflow in n/a","id":"CVE-2022-44638"},"products":["n/a"],"published":"2022-12-25","related":[{"cvss_score":8.8,"headline":"Integer overflow in n/a","id":"CVE-2022-42898","kev_date_added":null,"published":"2022-12-25"},{"cvss_score":7.5,"headline":"Null dereference in Heimdal Software Kerberos","id":"CVE-2022-3116","kev_date_added":null,"published":"2023-03-27"},{"cvss_score":7.5,"headline":"Security feature bypass in Samba","id":"CVE-2022-45142","kev_date_added":null,"published":"2023-03-06"},{"cvss_score":7.5,"headline":"Null dereference in n/a","id":"CVE-2021-44758","kev_date_added":null,"published":"2022-12-26"},{"cvss_score":7.5,"headline":"Auth bypass in samba","id":"CVE-2018-16860","kev_date_added":null,"published":"2019-07-31"},{"cvss_score":7.5,"headline":"Security feature bypass in n/a","id":"CVE-2017-6594","kev_date_added":null,"published":"2017-08-28"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"yes","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2025-04-15","vendors":["n/a"]},"summary":"Remote attackers can execute arbitrary code via an invalid free in the Heimdal KDC ASN.1 codec.","url":"https://insights.sbomify.com/CVE-2022-44640/"}