cve-2020-10713
CRITICAL vulncheck_kevA flaw was found in grub2, prior to version 2.06. An attacker may use the GRUB 2 flaw to hijack and tamper the GRUB verification process. This flaw also allows the bypass of Secure Boot protections. In order to load an untrusted or modified kernel, an attacker would first need to establish access to the system such as gaining physical access, obtain the ability to alter a pxe-boot network, or have remote access to a networked system with root access. With this access, an attacker could then craft a string to cause a buffer overflow by injecting a malicious payload that leads to arbitrary code execution within GRUB. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
- Published
- 2020-10-01 00:00 UTC
- Last Modified
- 2020-10-01
CVSS details not available.
No product information available.
No references available.
{
"cvss": 0.0,
"datePublished": "2020-10-01T00:00:00Z",
"dateUpdated": "2020-10-01T00:00:00Z",
"description": "A flaw was found in grub2, prior to version 2.06. An attacker may use the GRUB 2 flaw to hijack and tamper the GRUB verification process. This flaw also allows the bypass of Secure Boot protections. In order to load an untrusted or modified kernel, an attacker would first need to establish access to the system such as gaining physical access, obtain the ability to alter a pxe-boot network, or have remote access to a networked system with root access. With this access, an attacker could then craft a string to cause a buffer overflow by injecting a malicious payload that leads to arbitrary code execution within GRUB. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.",
"dueDate": "",
"id": "CVE-2020-10713",
"kev_catalogs": [
"vulncheck"
],
"knownRansomwareCampaignUse": "Known",
"product": "grub2",
"requiredAction": "Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.",
"severity": "CRITICAL",
"source": "vulncheck_kev",
"title": "GNU grub2 Buffer Copy without Checking Size of Input",
"vendor": "GNU"
}