{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-37592 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2021-37592 is a critical vulnerability in Oisf Suricata, published on 19 Nov 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-2021-37592 and fix it if it is affected.\n\nWhat it is: CVE-2021-37592 is a critical vulnerability in Oisf Suricata, published on 19 Nov 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-2021-37592 in the wild and no public exploit code.\n\nAffected product: Oisf Suricata. 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-2021-37592/ (Markdown: https://insights.sbomify.com/CVE-2021-37592/index.md)","id":"CVE-2021-37592","markdown":"https://insights.sbomify.com/CVE-2021-37592/index.md","name":"CVE-2021-37592","record":{"aliases":["DEBIAN-CVE-2021-37592","GHSA-hxgj-p44f-9x32","UBUNTU-CVE-2021-37592"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Suricata IDS/IPS","requires_auth":"none","summary":"Attackers can evade TCP detection in Suricata by sending crafted segment sequences, bypassing security controls.","user_interaction":"not_required","vuln_class":"other"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"suricata","vendor":"oisf"}],"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-787","name":"Out-of-bounds Write"}],"description":"Suricata before 5.0.8 and 6.x before 6.0.4 allows TCP evasion via a client with a crafted TCP/IP stack that can send a certain sequence of segments.","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":"Other in n/a","id":"CVE-2021-37592","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"oisf:suricata","products":["oisf:suricata"],"type":"other","year":"2021"},"n_packages":0,"n_references":3,"next":{"headline":"SQL injection in n/a","id":"CVE-2021-37593"},"packages":[],"prev":{"headline":"SQL injection in n/a","id":"CVE-2021-37589"},"products":["n/a"],"published":"2021-11-19","related":[{"cvss_score":9.8,"headline":"Code injection in n/a","id":"CVE-2023-35853","kev_date_added":null,"published":"2023-06-19"},{"cvss_score":9.8,"headline":"Integer overflow in n/a","id":"CVE-2018-10244","kev_date_added":null,"published":"2019-04-04"},{"cvss_score":9.4,"headline":"Memory corruption in Suricata","id":"CVE-2026-94083","kev_date_added":null,"published":"2026-09-20"},{"cvss_score":9.4,"headline":"Use after free in Suricata","id":"CVE-2026-94084","kev_date_added":null,"published":"2026-09-20"},{"cvss_score":9.1,"headline":"Suricata http2: protocol-change type confusion can lead to denial of service","id":"CVE-2026-45764","kev_date_added":null,"published":"2026-09-10"},{"cvss_score":8.2,"headline":"Suricata smtp/mime: heap out-of-bounds read quoted-printable decoder","id":"CVE-2026-57228","kev_date_added":null,"published":"2026-09-18"}],"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":"2024-08-04","vendors":["n/a"]},"summary":"Attackers can evade TCP detection in Suricata by sending crafted segment sequences, bypassing security controls.","url":"https://insights.sbomify.com/CVE-2021-37592/"}