{"answers":{"affected":"It affects 4 products.","exploited":"There is no known exploitation of CVE-2021-40153 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2021-40153 is a high-severity path traversal vulnerability in Debian Debian Linux, published on 27 Aug 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2021-40153 and fix it if it is affected.\n\nWhat it is: CVE-2021-40153 is a high-severity path traversal vulnerability in Debian Debian Linux, published on 27 Aug 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2021-40153 in the wild and no public exploit code.\n\nAffected product: Debian Debian Linux. 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-2021-40153/ (Markdown: https://insights.sbomify.com/CVE-2021-40153/index.md)","id":"CVE-2021-40153","markdown":"https://insights.sbomify.com/CVE-2021-40153/index.md","name":"CVE-2021-40153","record":{"aliases":["ALPINE-CVE-2021-40153","AZL-7463","CLSA-2025-1750782908","CLSA-2026-1777544697","CLSA-2026-1792439424","CLSA-2026-1792440720","DEBIAN-CVE-2021-40153","DLA-2752-1","DSA-4967-1","GHSA-98f5-57cr-27p7","UBUNTU-CVE-2021-40153","USN-5057-1","openSUSE-SU-2024:13035-1"],"analysis":{"component_type":"library","fix_type":"patch","impacts":["data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"Squashfs-Tools","requires_auth":"none","summary":"Squashfs-Tools allows path traversal during unsquash operations, enabling attackers to write files outside the intended destination directory.","user_interaction":"required","vuln_class":"path_traversal"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"debian_linux","vendor":"debian"},{"product":"fedora","vendor":"fedoraproject"},{"product":"enterprise_linux","vendor":"redhat"},{"product":"squashfs-tools","vendor":"squashfs-tools_project"}],"cvss":{"score":8.1,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-22","name":"Improper Limitation of a Pathname to a Restricted Directory"}],"description":"squashfs_opendir in unsquash-1.c in Squashfs-Tools 4.5 stores the filename in the directory entry; this is then used by unsquashfs to create the new file during the unsquash. The filename is not validated for traversal outside of the destination directory, and thus allows writing to locations outside of the destination.","ecosystems":["openSUSE:Tumbleweed"],"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":"Path traversal in n/a","id":"CVE-2021-40153","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"debian:debian_linux","products":["debian:debian_linux","fedoraproject:fedora","redhat:enterprise_linux"],"type":"path_traversal","year":"2021"},"n_packages":1,"n_references":8,"next":{"headline":"Information disclosure in n/a","id":"CVE-2021-40154"},"packages":[{"ecosystem":"openSUSE:Tumbleweed","fixed":["4.6.1-2.1"],"introduced":["0"],"last_affected":[],"package":"squashfs","purl":"pkg:rpm/opensuse/squashfs\u0026distro=openSUSE%20Tumbleweed","source":"openSUSE-SU-2024:13035-1"}],"prev":{"headline":"Information disclosure in n/a","id":"CVE-2021-40150"},"products":["n/a"],"published":"2021-08-27","related":[{"cvss_score":10,"headline":"ProFTPD Improper Access Control","id":"CVE-2015-3306","kev_date_added":"2026-10-08","published":"2015-05-18"},{"cvss_score":9.9,"headline":"RoundCube Webmail Deserialization of Untrusted Data","id":"CVE-2025-49113","kev_date_added":"2026-02-20","published":"2025-06-02"},{"cvss_score":9.8,"headline":"GNU InetUtils Argument Injection","id":"CVE-2026-24061","kev_date_added":"2026-01-26","published":"2026-01-21"},{"cvss_score":9.8,"headline":"Linux Kernel Improper Check for Unusual or Exceptional Conditions","id":"CVE-2025-39682","kev_date_added":"2026-09-18","published":"2025-09-05"},{"cvss_score":9.8,"headline":"Mozilla Firefox Use-After-Free","id":"CVE-2024-9680","kev_date_added":"2024-10-15","published":"2024-10-09"},{"cvss_score":9.8,"headline":"RARLAB UnRAR Directory Traversal","id":"CVE-2022-30333","kev_date_added":"2022-08-09","published":"2022-05-09"},{"cvss_score":9.8,"headline":"Roundcube Webmail SQL Injection","id":"CVE-2021-44026","kev_date_added":"2023-06-22","published":"2021-11-19"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"openSUSE"},{"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":"2024-08-04","vendors":["n/a"]},"summary":"Squashfs-Tools allows path traversal during unsquash operations, enabling attackers to write files outside the intended destination directory.","url":"https://insights.sbomify.com/CVE-2021-40153/"}