{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2023-52557 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2023-52557 yet. Limit exposure of the affected software until one is available.","what":"CVE-2023-52557 is a high-severity denial of service vulnerability in Openbsd Openbsd, published on 1 Mar 2024. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-52557 and fix it if it is affected.\n\nWhat it is: CVE-2023-52557 is a high-severity denial of service vulnerability in Openbsd Openbsd, published on 1 Mar 2024. 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-2023-52557 in the wild and no public exploit code.\n\nAffected product: Openbsd Openbsd. 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-2023-52557/ (Markdown: https://insights.sbomify.com/CVE-2023-52557/index.md)","id":"CVE-2023-52557","markdown":"https://insights.sbomify.com/CVE-2023-52557/index.md","name":"CVE-2023-52557","record":{"aliases":["GHSA-fr6m-422w-fv5h"],"analysis":{"component_type":"operating_system","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"OpenBSD OS","requires_auth":"none","summary":"A remote attacker can crash the npppd daemon in OpenBSD by sending a malformed L2TP message with an invalid AVP length.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"cisa-cg","cpe":[{"product":"openbsd","vendor":"openbsd"}],"cvss":{"score":7.5,"severity":"high","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-805","name":"Buffer Access with Incorrect Length Value"},{"id":"CWE-131","name":"Incorrect Calculation of Buffer Size"}],"description":"In OpenBSD 7.3 before errata 016, npppd(8) could crash by a l2tp message which has an AVP (Attribute-Value Pair) with wrong length.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"OpenBSD 7.3 invalid l2tp message npppd crash","id":"CVE-2023-52557","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"openbsd:openbsd","products":["openbsd:openbsd"],"type":"denial_of_service","year":"2023"},"n_packages":0,"n_references":2,"next":{"headline":"OpenBSD 7.4 and 7.3 m_split() network buffer kernel crash","id":"CVE-2023-52558"},"packages":[],"prev":{"headline":"OpenBSD 7.4 pf state race condition kernel crash","id":"CVE-2023-52556"},"products":["OpenBSD"],"published":"2024-03-01","related":[{"cvss_score":10,"headline":"Memory corruption in n/a","id":"CVE-2007-1365","kev_date_added":null,"published":"2007-03-10"},{"cvss_score":10,"headline":"Integer overflow in n/a","id":"CVE-2004-0220","kev_date_added":null,"published":"2004-03-25"},{"cvss_score":10,"headline":"Memory corruption in n/a","id":"CVE-2004-0083","kev_date_added":null,"published":"2004-02-14"},{"cvss_score":10,"headline":"Memory corruption in n/a","id":"CVE-2004-0084","kev_date_added":null,"published":"2004-02-14"},{"cvss_score":10,"headline":"Memory corruption in n/a","id":"CVE-2001-0284","kev_date_added":null,"published":"2001-05-07"},{"cvss_score":10,"headline":"Memory corruption in n/a","id":"CVE-2000-1010","kev_date_added":null,"published":"2001-01-22"},{"cvss_score":9.8,"headline":"Auth bypass in n/a","id":"CVE-2020-16088","kev_date_added":null,"published":"2020-07-28"}],"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":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2024-08-02","vendors":["OpenBSD"]},"summary":"A remote attacker can crash the npppd daemon in OpenBSD by sending a malformed L2TP message with an invalid AVP length.","url":"https://insights.sbomify.com/CVE-2023-52557/"}