CVE-2022-2601
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- CVE-2022-2601
CVE Details
| Release Date: | 2022-11-15 | |
| Impact: | Moderate | What is this? |
Description
A buffer overflow was found in grub_font_construct_glyph(). A malicious crafted pf2 font can lead to an overflow when calculating the max_glyph_size value, allocating a smaller than needed buffer for the glyph, this further leads to a buffer overflow and a heap based out-of-bounds write. An attacker may use this vulnerability to circumvent the secure boot mechanism.
See more information about CVE-2022-2601 from MITRE CVE dictionary and NIST NVD
NOTE: The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v3 metrics
| Base Score: | 8.2 |
| Vector String: | CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H |
| Version: | 3.0 |
| Attack Vector: | Local |
| Attack Complexity: | Low |
| Privileges Required: | High |
| User Interaction: | None |
| Scope: | Changed |
| Confidentiality Impact: | High |
| Integrity Impact: | High |
| Availability Impact: | High |
Errata information
| Platform | Errata | Release Date |
| Oracle Linux version 7 (grub2) | ELSA-2024-2002 | 2024-05-01 |
| Oracle Linux version 8 (grub2) | ELSA-2023-0049 | 2023-01-25 |
| Oracle Linux version 9 (grub2) | ELSA-2023-0752 | 2023-06-13 |
| Oracle Linux version 9 (grub2) | ELSA-2023-12019 | 2023-01-12 |
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