{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-27633 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-27633 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-27633 is a high-severity memory corruption vulnerability in SAP NetWeaver AS for ABAP (RFC Gateway), published on 9 Jun 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-2021-27633 and fix it if it is affected.\n\nWhat it is: CVE-2021-27633 is a high-severity memory corruption vulnerability in SAP NetWeaver AS for ABAP (RFC Gateway), published on 9 Jun 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-2021-27633 in the wild and no public exploit code.\n\nAffected product: SAP NetWeaver AS for ABAP (RFC Gateway). 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-2021-27633/ (Markdown: https://insights.sbomify.com/CVE-2021-27633/index.md)","id":"CVE-2021-27633","markdown":"https://insights.sbomify.com/CVE-2021-27633/index.md","name":"CVE-2021-27633","record":{"aliases":["GHSA-pqvr-m7xp-v679"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"SAP NetWeaver RFC Gateway","requires_auth":"none","summary":"An unauthenticated attacker can crash the SAP NetWeaver RFC Gateway by sending a specially crafted packet, causing a denial of service.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"sap","cpe":[{"product":"netweaver_abap","vendor":"sap"}],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.0"},"cwes":[{"id":"CWE-787","name":"Out-of-bounds Write"}],"description":"SAP NetWeaver AS for ABAP (RFC Gateway), versions - KRNL32NUC - 7.22,7.22EXT, KRNL64NUC - 7.22,7.22EXT,7.49, KRNL64UC - 8.04,7.22,7.22EXT,7.49,7.53,7.73, KERNEL - 7.22,8.04,7.49,7.53,7.73,7.77,7.81,7.82,7.83, allows an unauthenticated attacker without specific knowledge of the system to send a specially crafted packet over a network which will trigger an internal error in the system due to improper input validation in method ThCPIC() causing the system to crash and rendering it unavailable. In this attack, no data in the system can be viewed or modified.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Memory corruption in SAP NetWeaver AS for ABAP (RFC Gateway)","id":"CVE-2021-27633","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2021"},"n_packages":0,"n_references":2,"next":{"headline":"Denial of service in SAP NetWeaver AS for ABAP (RFC Gateway)","id":"CVE-2021-27634"},"packages":[],"prev":{"headline":"Null dereference in SAP NetWeaver ABAP Server and ABAP Platform (Enqueue Server)","id":"CVE-2021-27632"},"products":["SAP NetWeaver AS for ABAP (RFC Gateway)"],"published":"2021-06-09","related":[{"cvss_score":10,"headline":"Memory corruption in n/a","id":"CVE-2012-4341","kev_date_added":null,"published":"2012-08-15"},{"cvss_score":9,"headline":"Auth bypass in SAP NetWeaver AS ABAP and ABAP Platform","id":"CVE-2021-27610","kev_date_added":null,"published":"2021-06-16"},{"cvss_score":8.8,"headline":"Business logic in SAP NetWeaver AS ABAP and ABAP Platform","id":"CVE-2021-38178","kev_date_added":null,"published":"2021-10-12"},{"cvss_score":7.5,"headline":"Denial of service in SAP NetWeaver Application Server for ABAP (Kernel) and ABAP Platform (Kernel)","id":"CVE-2022-22543","kev_date_added":null,"published":"2022-02-09"},{"cvss_score":7.5,"headline":"Denial of service in SAP NetWeaver AS ABAP and ABAP Platform","id":"CVE-2021-38181","kev_date_added":null,"published":"2021-10-12"},{"cvss_score":7.5,"headline":"Denial of service in SAP NetWeaver AS for ABAP (RFC Gateway)","id":"CVE-2021-27597","kev_date_added":null,"published":"2021-06-09"}],"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":"2024-08-03","vendors":["SAP SE"]},"summary":"An unauthenticated attacker can crash the SAP NetWeaver RFC Gateway by sending a specially crafted packet, causing a denial of service.","url":"https://insights.sbomify.com/CVE-2021-27633/"}