{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-23521 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2021-23521 is a medium-severity path traversal vulnerability in n/a, published on 31 Jan 2022. 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-2021-23521 and fix it if it is affected.\n\nWhat it is: CVE-2021-23521 is a medium-severity path traversal vulnerability in n/a, published on 31 Jan 2022. 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-2021-23521 in the wild and no public exploit code.\n\nAffected product: n/a. 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-2021-23521/ (Markdown: https://insights.sbomify.com/CVE-2021-23521/index.md)","id":"CVE-2021-23521","markdown":"https://insights.sbomify.com/CVE-2021-23521/index.md","name":"CVE-2021-23521","record":{"aliases":["DEBIAN-CVE-2021-23521","GHSA-cv9m-jw92-c3v3","SNYK-UNMANAGED-JUCEFRAMEWORKJUCE-2388608","UBUNTU-CVE-2021-23521"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution","data_modify"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"JUCE framework","requires_auth":"low_privilege","summary":"Attackers can execute arbitrary code or modify files by crafting a malicious archive with symbolic links that are followed during extraction.","user_interaction":"not_required","vuln_class":"path_traversal"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"snyk","cpe":[{"product":"juce","vendor":"juce"}],"cvss":{"score":5.5,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-59","name":"Improper Link Resolution Before File Access"}],"description":"This affects the package juce-framework/JUCE before 6.1.5. This vulnerability is triggered when a malicious archive is crafted with an entry containing a symbolic link. When extracted, the symbolic link is followed outside of the target dir allowing writing arbitrary files on the target host. In some cases, this can allow an attacker to execute arbitrary code. The vulnerable code is in the ZipFile::uncompressEntry function in juce_ZipFile.cpp and is executed when the archive is extracted upon calling uncompressTo() on a ZipFile object.","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":"Link Following","id":"CVE-2021-23521","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"path_traversal","year":"2021"},"n_packages":0,"n_references":2,"next":{"headline":"Sandbox Bypass","id":"CVE-2021-23543"},"packages":[],"prev":{"headline":"Arbitrary File Write via Archive Extraction (Zip Slip)","id":"CVE-2021-23520"},"products":["n/a"],"published":"2022-01-31","related":[{"cvss_score":5.5,"headline":"Arbitrary File Write via Archive Extraction (Zip Slip)","id":"CVE-2021-23520","kev_date_added":null,"published":"2022-01-31"}],"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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-09-17","vendors":["n/a"]},"summary":"Attackers can execute arbitrary code or modify files by crafting a malicious archive with symbolic links that are followed during extraction.","url":"https://insights.sbomify.com/CVE-2021-23521/"}