{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2022-28733 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2022-28733 is a high-severity vulnerability in GNU GRUB, published on 20 Jul 2023. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2022-28733 and fix it if it is affected.\n\nWhat it is: CVE-2022-28733 is a high-severity vulnerability in GNU GRUB, published on 20 Jul 2023. 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-2022-28733 in the wild and no public exploit code.\n\nAffected product: GNU GRUB. 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-2022-28733/ (Markdown: https://insights.sbomify.com/CVE-2022-28733/index.md)","id":"CVE-2022-28733","markdown":"https://insights.sbomify.com/CVE-2022-28733/index.md","name":"CVE-2022-28733","record":{"aliases":["AZL-27553","AZL-34788","DEBIAN-CVE-2022-28733","GHSA-2rxj-vwp2-v63v","RHSA-2022:8900","UBUNTU-CVE-2022-28733"],"analysis":{"component_type":"operating_system","fix_type":"patch","impacts":["code_execution","privilege_escalation"],"network_reachable":"yes","non_default_config":false,"product_category":"GNU GRUB bootloader","requires_auth":"none","summary":"A malicious IP packet causes an integer underflow in GRUB, potentially allowing buffer overflows and arbitrary code execution during boot.","user_interaction":"not_required","vuln_class":"integer_overflow"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"canonical","cpe":[{"product":"grub2","vendor":"gnu"}],"cvss":{"score":8.1,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-191","name":"Integer Underflow (Wrap or Wraparound)"}],"description":"Integer underflow in grub_net_recv_ip4_packets; A malicious crafted IP packet can lead to an integer underflow in grub_net_recv_ip4_packets() function on rsm-\u003etotal_len value. Under certain circumstances the total_len value may end up wrapping around to a small integer number which will be used in memory allocation. If the attack succeeds in such way, subsequent operations can write past the end of the buffer.","ecosystems":["Red Hat:enterprise_linux:7::client","Red Hat:enterprise_linux:7::computenode","Red Hat:enterprise_linux:7::server","Red Hat:enterprise_linux:7::workstation"],"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 underflow in grub_net_recv_ip4_packets","id":"CVE-2022-28733","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"integer_overflow","year":"2022"},"n_packages":63,"n_references":3,"next":{"headline":"Out-of-bounds write when handling split HTTP headers","id":"CVE-2022-28734"},"packages":[{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["1:2.02-0.87.el7_9.11"],"introduced":["0"],"last_affected":[],"package":"grub2","purl":"pkg:rpm/redhat/grub2","source":"RHSA-2022:8900"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["1:2.02-0.87.el7_9.11"],"introduced":["0"],"last_affected":[],"package":"grub2-common","purl":"pkg:rpm/redhat/grub2-common","source":"RHSA-2022:8900"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["1:2.02-0.87.el7_9.11"],"introduced":["0"],"last_affected":[],"package":"grub2-debuginfo","purl":"pkg:rpm/redhat/grub2-debuginfo","source":"RHSA-2022:8900"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["1:2.02-0.87.el7_9.11"],"introduced":["0"],"last_affected":[],"package":"grub2-efi-aa64-modules","purl":"pkg:rpm/redhat/grub2-efi-aa64-modules","source":"RHSA-2022:8900"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["1:2.02-0.87.el7_9.11"],"introduced":["0"],"last_affected":[],"package":"grub2-efi-ia32","purl":"pkg:rpm/redhat/grub2-efi-ia32","source":"RHSA-2022:8900"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["1:2.02-0.87.el7_9.11"],"introduced":["0"],"last_affected":[],"package":"grub2-efi-ia32-cdboot","purl":"pkg:rpm/redhat/grub2-efi-ia32-cdboot","source":"RHSA-2022:8900"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["1:2.02-0.87.el7_9.11"],"introduced":["0"],"last_affected":[],"package":"grub2-efi-ia32-modules","purl":"pkg:rpm/redhat/grub2-efi-ia32-modules","source":"RHSA-2022:8900"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["1:2.02-0.87.el7_9.11"],"introduced":["0"],"last_affected":[],"package":"grub2-efi-x64","purl":"pkg:rpm/redhat/grub2-efi-x64","source":"RHSA-2022:8900"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["1:2.02-0.87.el7_9.11"],"introduced":["0"],"last_affected":[],"package":"grub2-efi-x64-cdboot","purl":"pkg:rpm/redhat/grub2-efi-x64-cdboot","source":"RHSA-2022:8900"},{"ecosystem":"Red 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Hat:enterprise_linux:7::client","fixed":["1:2.02-0.87.el7_9.11"],"introduced":["0"],"last_affected":[],"package":"grub2-ppc64-modules","purl":"pkg:rpm/redhat/grub2-ppc64-modules","source":"RHSA-2022:8900"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["1:2.02-0.87.el7_9.11"],"introduced":["0"],"last_affected":[],"package":"grub2-ppc64le-modules","purl":"pkg:rpm/redhat/grub2-ppc64le-modules","source":"RHSA-2022:8900"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["1:2.02-0.87.el7_9.11"],"introduced":["0"],"last_affected":[],"package":"grub2-tools","purl":"pkg:rpm/redhat/grub2-tools","source":"RHSA-2022:8900"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["1:2.02-0.87.el7_9.11"],"introduced":["0"],"last_affected":[],"package":"grub2-tools-extra","purl":"pkg:rpm/redhat/grub2-tools-extra","source":"RHSA-2022:8900"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["1:2.02-0.87.el7_9.11"],"introduced":["0"],"last_affected":[],"package":"grub2-tools-minimal","purl":"pkg:rpm/redhat/grub2-tools-minimal","source":"RHSA-2022:8900"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["1:2.02-0.87.el7_9.11"],"introduced":["0"],"last_affected":[],"package":"grub2-debuginfo","purl":"pkg:rpm/redhat/grub2-debuginfo","source":"RHSA-2022:8900"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["1:2.02-0.87.el7_9.11"],"introduced":["0"],"last_affected":[],"package":"grub2-efi-aa64-modules","purl":"pkg:rpm/redhat/grub2-efi-aa64-modules","source":"RHSA-2022:8900"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["1:2.02-0.87.el7_9.11"],"introduced":["0"],"last_affected":[],"package":"grub2-efi-ia32-cdboot","purl":"pkg:rpm/redhat/grub2-efi-ia32-cdboot","source":"RHSA-2022:8900"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["1:2.02-0.87.el7_9.11"],"introduced":["0"],"last_affected":[],"package":"grub2-efi-x64-cdboot","purl":"pkg:rpm/redhat/grub2-efi-x64-cdboot","source":"RHSA-2022:8900"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["1:2.02-0.87.el7_9.11"],"introduced":["0"],"last_affected":[],"package":"grub2-ppc-modules","purl":"pkg:rpm/redhat/grub2-ppc-modules","source":"RHSA-2022:8900"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["1:2.02-0.87.el7_9.11"],"introduced":["0"],"last_affected":[],"package":"grub2-ppc64-modules","purl":"pkg:rpm/redhat/grub2-ppc64-modules","source":"RHSA-2022:8900"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["1:2.02-0.87.el7_9.11"],"introduced":["0"],"last_affected":[],"package":"grub2-ppc64le-modules","purl":"pkg:rpm/redhat/grub2-ppc64le-modules","source":"RHSA-2022:8900"},{"ecosystem":"Red Hat:enterprise_linux:7::server","fixed":["1:2.02-0.87.el7_9.11"],"introduced":["0"],"last_affected":[],"package":"grub2","purl":"pkg:rpm/redhat/grub2","source":"RHSA-2022:8900"},{"ecosystem":"Red Hat:enterprise_linux:7::server","fixed":["1:2.02-0.87.el7_9.11"],"introduced":["0"],"last_affected":[],"package":"grub2-common","purl":"pkg:rpm/redhat/grub2-common","source":"RHSA-2022:8900"},{"ecosystem":"Red Hat:enterprise_linux:7::server","fixed":["1:2.02-0.87.el7_9.11"],"introduced":["0"],"last_affected":[],"package":"grub2-debuginfo","purl":"pkg:rpm/redhat/grub2-debuginfo","source":"RHSA-2022:8900"},{"ecosystem":"Red Hat:enterprise_linux:7::server","fixed":["1:2.02-0.87.el7_9.11"],"introduced":["0"],"last_affected":[],"package":"grub2-efi-aa64-modules","purl":"pkg:rpm/redhat/grub2-efi-aa64-modules","source":"RHSA-2022:8900"},{"ecosystem":"Red Hat:enterprise_linux:7::server","fixed":["1:2.02-0.87.el7_9.11"],"introduced":["0"],"last_affected":[],"package":"grub2-efi-ia32","purl":"pkg:rpm/redhat/grub2-efi-ia32","source":"RHSA-2022:8900"},{"ecosystem":"Red Hat:enterprise_linux:7::server","fixed":["1:2.02-0.87.el7_9.11"],"introduced":["0"],"last_affected":[],"package":"grub2-efi-ia32-cdboot","purl":"pkg:rpm/redhat/grub2-efi-ia32-cdboot","source":"RHSA-2022:8900"},{"ecosystem":"Red Hat:enterprise_linux:7::server","fixed":["1:2.02-0.87.el7_9.11"],"introduced":["0"],"last_affected":[],"package":"grub2-efi-ia32-modules","purl":"pkg:rpm/redhat/grub2-efi-ia32-modules","source":"RHSA-2022:8900"},{"ecosystem":"Red Hat:enterprise_linux:7::server","fixed":["1:2.02-0.87.el7_9.11"],"introduced":["0"],"last_affected":[],"package":"grub2-efi-x64","purl":"pkg:rpm/redhat/grub2-efi-x64","source":"RHSA-2022:8900"},{"ecosystem":"Red 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Hat:enterprise_linux:7::server","fixed":["1:2.02-0.87.el7_9.11"],"introduced":["0"],"last_affected":[],"package":"grub2-ppc-modules","purl":"pkg:rpm/redhat/grub2-ppc-modules","source":"RHSA-2022:8900"},{"ecosystem":"Red Hat:enterprise_linux:7::server","fixed":["1:2.02-0.87.el7_9.11"],"introduced":["0"],"last_affected":[],"package":"grub2-ppc64","purl":"pkg:rpm/redhat/grub2-ppc64","source":"RHSA-2022:8900"},{"ecosystem":"Red Hat:enterprise_linux:7::server","fixed":["1:2.02-0.87.el7_9.11"],"introduced":["0"],"last_affected":[],"package":"grub2-ppc64-modules","purl":"pkg:rpm/redhat/grub2-ppc64-modules","source":"RHSA-2022:8900"}],"prev":{"headline":"Apache JSPWiki Cross-site scripting vulnerability on WeblogPlugin","id":"CVE-2022-28732"},"products":["GNU GRUB"],"published":"2023-07-20","related":[{"cvss_score":8.8,"headline":"Memory corruption in GRUB2","id":"CVE-2024-56737","kev_date_added":null,"published":"2024-12-29"},{"cvss_score":8.1,"headline":"Out-of-bounds write when handling split HTTP headers","id":"CVE-2022-28734","kev_date_added":null,"published":"2023-07-20"},{"cvss_score":7.8,"headline":"Grub2: missing unregister call for gettext command may lead to use-after-free","id":"CVE-2025-61662","kev_date_added":null,"published":"2025-11-18"},{"cvss_score":7.8,"headline":"Grub2: fs/hfs: strcpy() using the volume name (fs/hfs.c:382)","id":"CVE-2024-45782","kev_date_added":null,"published":"2025-03-03"},{"cvss_score":7.8,"headline":"Grub2: squash4: integer overflow may lead to heap based out-of-bounds write when reading data","id":"CVE-2025-0678","kev_date_added":null,"published":"2025-03-03"},{"cvss_score":7.8,"headline":"Grub2: udf: heap based buffer overflow in grub_udf_read_block() may lead to arbitrary code execution","id":"CVE-2025-0689","kev_date_added":null,"published":"2025-03-03"}],"sources":[{"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":"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":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2025-02-13","vendors":["GNU Project"]},"summary":"A malicious IP packet causes an integer underflow in GRUB, potentially allowing buffer overflows and arbitrary code execution during boot.","url":"https://insights.sbomify.com/CVE-2022-28733/"}