{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2024-21639 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2024-21639 yet. Limit exposure of the affected software until one is available.","what":"CVE-2024-21639 is a medium-severity memory corruption vulnerability in chromiumembedded cef, published on 12 Jan 2024. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2024-21639 and fix it if it is affected.\n\nWhat it is: CVE-2024-21639 is a medium-severity memory corruption vulnerability in chromiumembedded cef, published on 12 Jan 2024. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2024-21639 in the wild and no public exploit code.\n\nAffected product: chromiumembedded cef. 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-2024-21639/ (Markdown: https://insights.sbomify.com/CVE-2024-21639/index.md)","id":"CVE-2024-21639","markdown":"https://insights.sbomify.com/CVE-2024-21639/index.md","name":"CVE-2024-21639","record":{"aliases":["GHSA-m375-jw5x-x8mg"],"analysis":{"component_type":"library","fix_type":"patch","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Chromium Embedded Framework","requires_auth":"low_privilege","summary":"An out-of-bounds read in CEF's shared memory handling allows attackers to read memory outside the sandbox boundaries.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"chromium_embedded_framework","vendor":"chromiumembedded"}],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-125","name":"Out-of-bounds Read"}],"description":"CEF (Chromium Embedded Framework ) is a simple framework for embedding Chromium-based browsers in other applications. `CefLayeredWindowUpdaterOSR::OnAllocatedSharedMemory` does not check the size of the shared memory, which leads to out-of-bounds read outside the sandbox. This vulnerability was patched in commit 1f55d2e.","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":"OOB Access in CefLayeredWindowUpdaterOSR::OnAllocatedSharedMemory","id":"CVE-2024-21639","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2024"},"n_packages":0,"n_references":2,"next":{"headline":"OOB Access in CefVideoConsumerOSR::OnFrameCaptured","id":"CVE-2024-21640"},"packages":[],"prev":{"headline":"Azure IPAM solution Elevation of Privilege Vulnerability","id":"CVE-2024-21638"},"products":["cef"],"published":"2024-01-12","related":[{"cvss_score":5.4,"headline":"OOB Access in CefVideoConsumerOSR::OnFrameCaptured","id":"CVE-2024-21640","kev_date_added":null,"published":"2024-01-13"}],"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":"2024-08-01","vendors":["chromiumembedded"]},"summary":"An out-of-bounds read in CEF's shared memory handling allows attackers to read memory outside the sandbox boundaries.","url":"https://insights.sbomify.com/CVE-2024-21639/"}