{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-37239 exists.","fix":"No fix has been published for CVE-2020-37239 yet. Limit exposure of the affected software until one is available.","what":"CVE-2020-37239 is a critical memory corruption vulnerability in Gegl libbabl, published on 16 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-37239 and fix it if it is affected.\n\nWhat it is: CVE-2020-37239 is a critical memory corruption vulnerability in Gegl libbabl, published on 16 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-37239 exists.\n\nAffected product: Gegl libbabl. 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-2020-37239/ (Markdown: https://insights.sbomify.com/CVE-2020-37239/index.md)","id":"CVE-2020-37239","markdown":"https://insights.sbomify.com/CVE-2020-37239/index.md","name":"CVE-2020-37239","record":{"aliases":["GHSA-4fvf-cvgm-9hvc","UBUNTU-CVE-2020-37239"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"libbabl image library","requires_auth":"none","summary":"Attackers can bypass double-free detection in libbabl to achieve memory corruption and potential code execution.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":9.3,"severity":"critical","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-415","name":"Double Free"}],"description":"libbabl 0.1.62 contains a broken double free detection vulnerability that allows attackers to bypass memory safety checks by exploiting signature overwriting in freed chunks. Attackers can call babl_free() twice on the same pointer without triggering detection, as libc's malloc metadata overwrites babl's signature field upon freeing, enabling potential memory corruption and code execution.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":false,"headline":"libbabl 0.1.62 Broken Double Free Detection Memory Safety","id":"CVE-2020-37239","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2020"},"n_packages":0,"n_references":4,"next":{"headline":"Queue Management System 4.0.0 Stored XSS via Add User","id":"CVE-2020-37240"},"packages":[],"prev":{"headline":"CMS Made Simple 2.2.15 Stored XSS via SVG File Upload","id":"CVE-2020-37238"},"products":["libbabl"],"published":"2026-05-16","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"poc","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-05-18","vendors":["Gegl"]},"summary":"Attackers can bypass double-free detection in libbabl to achieve memory corruption and potential code execution.","url":"https://insights.sbomify.com/CVE-2020-37239/"}