{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2025-13397 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2025-13397 yet. Limit exposure of the affected software until one is available.","what":"CVE-2025-13397 is a medium-severity vulnerability in mrubyc, published on 19 Nov 2025. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2025-13397 and fix it if it is affected.\n\nWhat it is: CVE-2025-13397 is a medium-severity vulnerability in mrubyc, published on 19 Nov 2025. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2025-13397 in the wild and no public exploit code.\n\nAffected product: mrubyc. 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-2025-13397/ (Markdown: https://insights.sbomify.com/CVE-2025-13397/index.md)","id":"CVE-2025-13397","markdown":"https://insights.sbomify.com/CVE-2025-13397/index.md","name":"CVE-2025-13397","record":{"aliases":["GHSA-99jr-qh2r-jwfm"],"analysis":{"component_type":"library","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Ruby microcontroller library","requires_auth":"low_privilege","summary":"A local attacker can cause a denial of service in mrubyc via a null pointer dereference in the memory reallocation function.","user_interaction":"not_required","vuln_class":"null_dereference"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulDB","cpe":[{"product":"mruby\\/c","vendor":"s-itoc"}],"cvss":{"score":4.8,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X","version":"4.0"},"cwes":[{"id":"CWE-476","name":"NULL Pointer Dereference"},{"id":"CWE-404","name":"Improper Resource Shutdown or Release"}],"description":"A security vulnerability has been detected in mrubyc up to 3.4. This impacts the function mrbc_raw_realloc of the file src/alloc.c. Such manipulation of the argument ptr leads to null pointer dereference. An attack has to be approached locally. The name of the patch is 009111904807b8567262036bf45297c3da8f1c87. It is advisable to implement a patch to correct this issue.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"mrubyc alloc.c mrbc_raw_realloc null pointer dereference","id":"CVE-2025-13397","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"null_dereference","year":"2025"},"n_packages":0,"n_references":6,"next":{"headline":"Insecure Encryption in Communication with the Web Interface on TP-Link VX800v","id":"CVE-2025-13399"},"packages":[],"prev":{"headline":"code-projects Courier Management System add-office.php sql injection","id":"CVE-2025-13396"},"products":["mrubyc"],"published":"2025-11-19","related":[],"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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-11-19","vendors":["n/a"]},"summary":"A local attacker can cause a denial of service in mrubyc via a null pointer dereference in the memory reallocation function.","url":"https://insights.sbomify.com/CVE-2025-13397/"}