{ "data_version": "4.0", "data_type": "CVE", "data_format": "MITRE", "CVE_data_meta": { "ID": "CVE-2023-4693", "ASSIGNER": "secalert@redhat.com", "STATE": "PUBLIC" }, "description": { "description_data": [ { "lang": "eng", "value": "An out-of-bounds read flaw was found on grub2's NTFS filesystem driver. This issue may allow a physically present attacker to present a specially crafted NTFS file system image to read arbitrary memory locations. A successful attack allows sensitive data cached in memory or EFI variable values to be leaked, presenting a high Confidentiality risk." } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "Out-of-bounds Read", "cweId": "CWE-125" } ] } ] }, "affects": { "vendor": { "vendor_data": [ { "vendor_name": "n/a", "product": { "product_data": [ { "product_name": "grub2", "version": { "version_data": [ { "version_value": "not down converted", "x_cve_json_5_version_data": { "defaultStatus": "affected" } } ] } } ] } }, { "vendor_name": "Red Hat", "product": { "product_data": [ { "product_name": "Red Hat Enterprise Linux 7", "version": { "version_data": [ { "version_value": "not down converted", "x_cve_json_5_version_data": { "defaultStatus": "unknown" } } ] } }, { "product_name": "Red Hat Enterprise Linux 8", "version": { "version_data": [ { "version_value": "not down converted", "x_cve_json_5_version_data": { "defaultStatus": "affected" } } ] } }, { "product_name": "Red Hat Enterprise Linux 9", "version": { "version_data": [ { "version_value": "not down converted", "x_cve_json_5_version_data": { "defaultStatus": "affected" } } ] } } ] } }, { "vendor_name": "Fedora", "product": { "product_data": [ { "product_name": "Fedora", "version": { "version_data": [ { "version_value": "not down converted", "x_cve_json_5_version_data": { "defaultStatus": "affected" } } ] } } ] } } ] } }, "references": { "reference_data": [ { "url": "https://access.redhat.com/security/cve/CVE-2023-4693", "refsource": "MISC", "name": "https://access.redhat.com/security/cve/CVE-2023-4693" }, { "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2238343", "refsource": "MISC", "name": "https://bugzilla.redhat.com/show_bug.cgi?id=2238343" }, { "url": "https://dfir.ru/2023/10/03/cve-2023-4692-cve-2023-4693-vulnerabilities-in-the-grub-boot-manager/", "refsource": "MISC", "name": "https://dfir.ru/2023/10/03/cve-2023-4692-cve-2023-4693-vulnerabilities-in-the-grub-boot-manager/" }, { "url": "https://lists.gnu.org/archive/html/grub-devel/2023-10/msg00028.html", "refsource": "MISC", "name": "https://lists.gnu.org/archive/html/grub-devel/2023-10/msg00028.html" }, { "url": "https://seclists.org/oss-sec/2023/q4/37", "refsource": "MISC", "name": "https://seclists.org/oss-sec/2023/q4/37" }, { "url": "https://security.gentoo.org/glsa/202311-14", "refsource": "MISC", "name": "https://security.gentoo.org/glsa/202311-14" }, { "url": "https://security.netapp.com/advisory/ntap-20231208-0002/", "refsource": "MISC", "name": "https://security.netapp.com/advisory/ntap-20231208-0002/" } ] }, "impact": { "cvss": [ { "attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "HIGH", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N", "version": "3.1" } ] } }