{"answers":{"affected":"1 open source package ship an affected version, including commonmark. It affects 2 products.","exploited":"There is no known exploitation of CVE-2020-5238 in the wild and no public exploit code.","fix":"Upgrade commonmark to 1.8 or later.","what":"CVE-2020-5238 is a medium-severity denial of service vulnerability in Fedoraproject Fedora, published on 1 Jul 2020. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-5238 and fix it if it is affected.\n\nWhat it is: CVE-2020-5238 is a medium-severity denial of service vulnerability in Fedoraproject Fedora, published on 1 Jul 2020. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2020-5238 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- commonmark (CRAN): affected from 0.2; fixed in 1.8\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-2020-5238/ (Markdown: https://insights.sbomify.com/CVE-2020-5238/index.md)","id":"CVE-2020-5238","markdown":"https://insights.sbomify.com/CVE-2020-5238/index.md","name":"CVE-2020-5238","record":{"aliases":["ALSA-2021:1972","DEBIAN-CVE-2020-5238","GHSA-7gc6-9qr5-hc85","RHSA-2021:1972","RSEC-2023-6","UBUNTU-CVE-2020-5238"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Markdown parsing library","requires_auth":"low_privilege","summary":"An attacker can cause a denial of service by crafting a markdown table that triggers excessive processing time in the cmark-gfm library.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"fedora","vendor":"fedoraproject"},{"product":"github_flavored_markdown","vendor":"github_flavored_markdown_project"}],"cvss":{"score":6.5,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-20","name":"Improper Input Validation"}],"description":"The table extension in GitHub Flavored Markdown before version 0.29.0.gfm.1 takes O(n * n) time to parse certain inputs. An attacker could craft a markdown table which would take an unreasonably long time to process, causing a denial of service. This issue does not affect the upstream cmark project. The issue has been fixed in version 0.29.0.gfm.1.","ecosystems":["AlmaLinux:8","CRAN","Red Hat:enterprise_linux:8::crb"],"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":"Denial of service in table parsing in cmark-gfm","id":"CVE-2020-5238","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"fedoraproject:fedora","products":["fedoraproject:fedora"],"type":"denial_of_service","year":"2020"},"n_packages":5,"n_references":5,"next":{"headline":"Unspecified vulnerability in the fetchmail script in Mailu","id":"CVE-2020-5239"},"packages":[{"ecosystem":"CRAN","fixed":["1.8"],"introduced":["0.2"],"last_affected":[],"package":"commonmark","purl":"pkg:cran/commonmark","source":"RSEC-2023-6"},{"ecosystem":"AlmaLinux:8","fixed":["2.0.6-5.el8"],"introduced":["0"],"last_affected":[],"package":"pandoc","purl":"pkg:rpm/almalinux/pandoc","source":"ALSA-2021:1972"},{"ecosystem":"AlmaLinux:8","fixed":["2.0.6-5.el8"],"introduced":["0"],"last_affected":[],"package":"pandoc-common","purl":"pkg:rpm/almalinux/pandoc-common","source":"ALSA-2021:1972"},{"ecosystem":"Red Hat:enterprise_linux:8::crb","fixed":["0:2.0.6-5.el8"],"introduced":["0"],"last_affected":[],"package":"pandoc","purl":"pkg:rpm/redhat/pandoc","source":"RHSA-2021:1972"},{"ecosystem":"Red Hat:enterprise_linux:8::crb","fixed":["0:2.0.6-5.el8"],"introduced":["0"],"last_affected":[],"package":"pandoc-common","purl":"pkg:rpm/redhat/pandoc-common","source":"RHSA-2021:1972"}],"prev":{"headline":"Relative Path Traversal in oneup/uploader-bundle","id":"CVE-2020-5237"},"products":["cmark-gfm"],"published":"2020-07-01","related":[{"cvss_score":9.8,"headline":"PHP-CGI OS Command Injection","id":"CVE-2024-4577","kev_date_added":"2024-06-12","published":"2024-06-09"},{"cvss_score":9.8,"headline":"Grafana Authentication Bypass","id":"CVE-2021-39226","kev_date_added":"2022-08-25","published":"2021-10-05"},{"cvss_score":9.8,"headline":"VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow","id":"CVE-2019-5544","kev_date_added":"2021-11-03","published":"2019-12-06"},{"cvss_score":9.6,"headline":"Google Chromium V8 Type Confusion","id":"CVE-2024-4947","kev_date_added":"2024-05-20","published":"2024-05-15"},{"cvss_score":9.6,"headline":"Google Chromium Visuals Use-After-Free","id":"CVE-2024-4671","kev_date_added":"2024-05-13","published":"2024-05-09"},{"cvss_score":9.6,"headline":"Google Chromium Mojo Insufficient Data Validation","id":"CVE-2022-3075","kev_date_added":"2022-09-08","published":"2022-09-26"},{"cvss_score":9.6,"headline":"Google Chromium Indexed DB API Use-After-Free","id":"CVE-2021-30633","kev_date_added":"2021-11-03","published":"2021-10-08"}],"sources":[{"class":"attribution","licence":"MIT","name":"AlmaLinux","prefix":"ALSA"},{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"Red Hat","prefix":"RHSA"},{"class":"attribution","licence":"Apache-2.0","name":"R Consortium","prefix":"RSEC"},{"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":["github"]},"summary":"An attacker can cause a denial of service by crafting a markdown table that triggers excessive processing time in the cmark-gfm library.","url":"https://insights.sbomify.com/CVE-2020-5238/"}