{"api_version":"1","generated_at":"2026-04-22T23:31:16+00:00","cve":"CVE-2020-15707","urls":{"html":"https://cve.report/CVE-2020-15707","api":"https://cve.report/api/cve/CVE-2020-15707.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2020-15707","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2020-15707"},"summary":{"title":"CVE-2020-15707","description":"Integer overflows were discovered in the functions grub_cmd_initrd and grub_initrd_init in the efilinux component of GRUB2, as shipped in Debian, Red Hat, and Ubuntu (the functionality is not included in GRUB2 upstream), leading to a heap-based buffer overflow. These could be triggered by an extremely large number of arguments to the initrd command on 32-bit architectures, or a crafted filesystem with very large files on any architecture. An attacker could use this to execute arbitrary code and bypass UEFI Secure Boot restrictions. 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Cloud Linux Security Update for grub2 (ALINUX3-SA-2022:0064)"},{"cve":"CVE-2020-15707","qid":"377533","title":"Alibaba Cloud Linux Security Update for grub2 (ALINUX2-SA-2020:0108)"},{"cve":"CVE-2020-15707","qid":"502730","title":"Alpine Linux Security Update for grub"},{"cve":"CVE-2020-15707","qid":"710015","title":"Gentoo Linux GRUB Multiple Vulnerabilities (GLSA 202104-05)"},{"cve":"CVE-2020-15707","qid":"900175","title":"CBL-Mariner Linux Security Update for grub2 2.02"},{"cve":"CVE-2020-15707","qid":"903638","title":"Common Base Linux Mariner (CBL-Mariner) Security Update for grub2 (1828)"}]},"source_records":{"cve_program":{"CVE_data_meta":{"ASSIGNER":"security@ubuntu.com","DATE_PUBLIC":"2020-07-29T17:00:00.000Z","ID":"CVE-2020-15707","STATE":"PUBLIC","TITLE":"GRUB2 contained integer overflows when handling the initrd command, leading to a heap-based buffer overflow."},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"grub2 in 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These could be triggered by an extremely large number of arguments to the initrd command on 32-bit architectures, or a crafted filesystem with very large files on any architecture. An attacker could use this to execute arbitrary code and bypass UEFI Secure Boot restrictions. This issue affects GRUB2 version 2.04 and prior versions."}]},"generator":{"engine":"Vulnogram 0.0.9"},"impact":{"cvss":{"attackComplexity":"HIGH","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":5.7,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"HIGH","privilegesRequired":"HIGH","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:H","version":"3.1"}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-362 Race Condition (Concurrent Execution using Shared Resource with Improper 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20200729 multiple secure boot grub2 and linux kernel vulnerabilities","url":"http://www.openwall.com/lists/oss-security/2020/07/29/3"},{"refsource":"CONFIRM","name":"https://security.netapp.com/advisory/ntap-20200731-0008/","url":"https://security.netapp.com/advisory/ntap-20200731-0008/"},{"refsource":"UBUNTU","name":"USN-4432-1","url":"https://usn.ubuntu.com/4432-1/"},{"refsource":"SUSE","name":"openSUSE-SU-2020:1169","url":"http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00017.html"},{"refsource":"SUSE","name":"openSUSE-SU-2020:1168","url":"http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00016.html"},{"refsource":"GENTOO","name":"GLSA-202104-05","url":"https://security.gentoo.org/glsa/202104-05"}]},"source":{"advisory":"USN 4432-1","discovery":"INTERNAL"}},"nvd":{"publishedDate":"2020-07-29 18:15:00","lastModifiedDate":"2021-09-13 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overflows were discovered in the functions grub_cmd_initrd and grub_initrd_init in the efilinux component of GRUB2, as shipped in Debian, Red Hat, and Ubuntu (the functionality is not included in GRUB2 upstream), leading to a heap-based buffer overflow. 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