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. This issue affects GRUB2 version 2.04 and prior versions.
This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 5.7, requiring local system access to exploit but requires specific conditions to be met without requiring user interaction . The vulnerability impacts integrity (unauthorized modifications), and availability (service disruption) for affected systems. Impacting 15 products from gnu, from redhat, from redhat and 12 others, organizations running these solutions should prioritize assessment and patching.
Reported in 2020, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.
2020-07-29T18:15:14.640
2024-11-21T05:06:04.027
Modified
CVSSv3.1: 5.7 (MEDIUM)
AV:L/AC:M/Au:N/C:P/I:P/A:P
3.4
6.4
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | gnu | grub2 | ≤ 2.04 | Yes |
| Application | redhat | enterprise_linux_atomic_host | - | Yes |
| Application | redhat | openshift_container_platform | 4.0 | Yes |
| Operating System | redhat | enterprise_linux | 7.0 | Yes |
| Operating System | redhat | enterprise_linux | 8.0 | Yes |
| Operating System | microsoft | windows_10 | - | Yes |
| Operating System | microsoft | windows_10 | 1607 | Yes |
| Operating System | microsoft | windows_10 | 1709 | Yes |
| Operating System | microsoft | windows_10 | 1803 | Yes |
| Operating System | microsoft | windows_10 | 1809 | Yes |
| Operating System | microsoft | windows_10 | 1903 | Yes |
| Operating System | microsoft | windows_10 | 1909 | Yes |
| Operating System | microsoft | windows_10 | 2004 | Yes |
| Operating System | microsoft | windows_8.1 | - | Yes |
| Operating System | microsoft | windows_rt_8.1 | - | Yes |
| Operating System | microsoft | windows_server_2012 | - | Yes |
| Operating System | microsoft | windows_server_2012 | r2 | Yes |
| Operating System | microsoft | windows_server_2016 | - | Yes |
| Operating System | microsoft | windows_server_2016 | 1903 | Yes |
| Operating System | microsoft | windows_server_2016 | 1909 | Yes |
| Operating System | microsoft | windows_server_2016 | 2004 | Yes |
| Operating System | microsoft | windows_server_2019 | - | Yes |
| Operating System | canonical | ubuntu_linux | 14.04 | Yes |
| Operating System | canonical | ubuntu_linux | 16.04 | Yes |
| Operating System | canonical | ubuntu_linux | 18.04 | Yes |
| Operating System | canonical | ubuntu_linux | 20.04 | Yes |
| Operating System | debian | debian_linux | 10.0 | Yes |
| Operating System | opensuse | leap | 15.1 | Yes |
| Operating System | opensuse | leap | 15.2 | Yes |
| Operating System | suse | suse_linux_enterprise_server | 11 | Yes |
| Operating System | suse | suse_linux_enterprise_server | 12 | Yes |
| Operating System | suse | suse_linux_enterprise_server | 15 | Yes |
| Application | netapp | active_iq_unified_manager | ≥ 9.5 | Yes |
SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For gnu's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.