Release Date: | 2020-07-29 | |
Impact: | None | What is this? |
In grub2 versions before 2.06 the grub memory allocator doesn't check for possible arithmetic overflows on the requested allocation size. This leads the function to return invalid memory allocations which can be further used to cause possible integrity, confidentiality and availability impacts during the boot process.
See more information about CVE-2020-14308 from MITRE CVE dictionary and NIST NVD
NOTE: The following CVSS metrics and score provided are preliminary and subject to review.
Base Score: | 6.4 |
Vector String: | CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H |
Version: | 3.0 |
Attack Vector: | Local |
Attack Complexity: | High |
Privileges Required: | High |
User Interaction: | None |
Scope: | Unchanged |
Confidentiality Impact: | High |
Integrity Impact: | High |
Availability Impact: | High |
Platform | Errata | Release Date |
Oracle Linux version 7 (grub2) | ELSA-2020-5782 | 2020-07-29 |
Oracle Linux version 7 (grub2) | ELSA-2020-5790 | 2020-07-29 |
Oracle Linux version 8 (grub2) | ELSA-2020-5786 | 2020-07-29 |
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