{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2021-20308 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2021-20308 is a critical vulnerability in Debian Debian Linux, published on 5 Apr 2021. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-20308 and fix it if it is affected.\n\nWhat it is: CVE-2021-20308 is a critical vulnerability in Debian Debian Linux, published on 5 Apr 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2021-20308 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-2021-20308/ (Markdown: https://insights.sbomify.com/CVE-2021-20308/index.md)","id":"CVE-2021-20308","markdown":"https://insights.sbomify.com/CVE-2021-20308/index.md","name":"CVE-2021-20308","record":{"aliases":["DEBIAN-CVE-2021-20308","GHSA-pmv7-7c58-mhrx","UBUNTU-CVE-2021-20308","openSUSE-SU-2021:0882-1","openSUSE-SU-2021:0893-1","openSUSE-SU-2021:0895-1","openSUSE-SU-2021:1266-1","openSUSE-SU-2024:10848-1"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution","denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"HTML document library","requires_auth":"none","summary":"An integer overflow in htmldoc allows attackers to execute arbitrary code or cause a denial of service.","user_interaction":"not_required","vuln_class":"integer_overflow"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat","cpe":[{"product":"debian_linux","vendor":"debian"},{"product":"htmldoc","vendor":"htmldoc_project"}],"cvss":{"score":9.8,"severity":"critical","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-190","name":"Integer Overflow or Wraparound"}],"description":"Integer overflow in the htmldoc 1.9.11 and before may allow attackers to execute arbitrary code and cause a denial of service that is similar to CVE-2017-9181.","ecosystems":["SUSE:Package Hub 12 SP1","SUSE:Package Hub 15 SP1","SUSE:Package Hub 15 SP2","openSUSE:Leap 15.2","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":"Integer overflow in htmldoc","id":"CVE-2021-20308","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"debian:debian_linux","products":["debian:debian_linux"],"type":"integer_overflow","year":"2021"},"n_packages":5,"n_references":3,"next":{"headline":"Denial of service in ImagemMagick","id":"CVE-2021-20309"},"packages":[{"ecosystem":"SUSE:Package Hub 12 SP1","fixed":["1.8.28-6.1"],"introduced":["0"],"last_affected":[],"package":"htmldoc","purl":"pkg:rpm/suse/htmldoc\u0026distro=SUSE%20Package%20Hub%2012%20SP1","source":"openSUSE-SU-2021:1266-1"},{"ecosystem":"SUSE:Package Hub 15 SP1","fixed":["1.9.12-bp151.4.3.1"],"introduced":["0"],"last_affected":[],"package":"htmldoc","purl":"pkg:rpm/suse/htmldoc\u0026distro=SUSE%20Package%20Hub%2015%20SP1","source":"openSUSE-SU-2021:0895-1"},{"ecosystem":"SUSE:Package Hub 15 SP2","fixed":["1.9.12-bp152.4.3.1"],"introduced":["0"],"last_affected":[],"package":"htmldoc","purl":"pkg:rpm/suse/htmldoc\u0026distro=SUSE%20Package%20Hub%2015%20SP2","source":"openSUSE-SU-2021:0893-1"},{"ecosystem":"openSUSE:Leap 15.2","fixed":["1.9.12-lp152.4.3.1"],"introduced":["0"],"last_affected":[],"package":"htmldoc","purl":"pkg:rpm/opensuse/htmldoc\u0026distro=openSUSE%20Leap%2015.2","source":"openSUSE-SU-2021:0882-1"},{"ecosystem":"openSUSE:Tumbleweed","fixed":["1.9.12-1.2"],"introduced":["0"],"last_affected":[],"package":"htmldoc","purl":"pkg:rpm/opensuse/htmldoc\u0026distro=openSUSE%20Tumbleweed","source":"openSUSE-SU-2024:10848-1"}],"prev":{"headline":"Memory corruption in libpano13","id":"CVE-2021-20307"},"products":["htmldoc"],"published":"2021-04-05","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":"2024-08-03","vendors":["n/a"]},"summary":"An integer overflow in htmldoc allows attackers to execute arbitrary code or cause a denial of service.","url":"https://insights.sbomify.com/CVE-2021-20308/"}