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{"acknowledgement": "Red Hat would like to thank Julian Andres Klode (Canonical) for reporting this issue.", "affected_release": [{"advisory": "RHSA-2022:5095", "cpe": "cpe:/o:redhat:enterprise_linux:8", "package": "grub2-1:2.02-123.el8_6.8", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2022-06-16T00:00:00Z"}, {"advisory": "RHSA-2022:5098", "cpe": "cpe:/o:redhat:rhel_e4s:8.1", "package": "grub2-1:2.02-87.el8_1.10", "product_name": "Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions", "release_date": "2022-06-16T00:00:00Z"}, {"advisory": "RHSA-2022:5100", "cpe": "cpe:/o:redhat:rhel_eus:8.2", "package": "grub2-1:2.02-87.el8_2.10", "product_name": "Red Hat Enterprise Linux 8.2 Extended Update Support", "release_date": "2022-06-16T00:00:00Z"}, {"advisory": "RHSA-2022:5096", "cpe": "cpe:/o:redhat:rhel_eus:8.4", "package": "grub2-1:2.02-99.el8_4.9", "product_name": "Red Hat Enterprise Linux 8.4 Extended Update Support", "release_date": "2022-06-16T00:00:00Z"}, {"advisory": "RHSA-2022:5099", "cpe": "cpe:/o:redhat:enterprise_linux:9", "package": "grub2-1:2.06-27.el9_0.7", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2022-06-16T00:00:00Z"}], "bugzilla": {"description": "grub2: shim_lock verifier allows non-kernel files to be loaded", "id": "2090857", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2090857"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.8", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "verified"}, "cwe": "CWE-829", "details": ["The GRUB2's shim_lock verifier allows non-kernel files to be loaded on shim-powered secure boot systems. Allowing such files to be loaded may lead to unverified code and modules to be loaded in GRUB2 breaking the secure boot trust-chain.", "A flaw was found in grub2. The shim_lock verifier from grub2 allows non-kernel files to be loaded when secure boot is enabled, giving the possibility of unverified code or modules to be loaded when it should not be allowed."], "name": "CVE-2022-28735", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "grub2", "product_name": "Red Hat Enterprise Linux 7"}], "public_date": "2022-06-07T17:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-28735\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-28735"], "threat_severity": "Moderate", "upstream_fix": "grub 2.12"}