| CVE-2020-28974 | Date: (C)2020-11-23 (M)2024-04-25 |
A slab-out-of-bounds read in fbcon in the Linux kernel before 5.9.7 could be used by local attackers to read privileged information or potentially crash the kernel, aka CID-3c4e0dff2095. This occurs because KD_FONT_OP_COPY in drivers/tty/vt/vt.c can be used for manipulations such as font height.
CVSS Score and Metrics +CVSS Score and Metrics -| CVSS V3 Severity: | CVSS V2 Severity: |
| CVSS Score : 5.0 | CVSS Score : 6.1 |
| Exploit Score: 0.3 | Exploit Score: 3.9 |
| Impact Score: 4.7 | Impact Score: 8.5 |
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| CVSS V3 Metrics: | CVSS V2 Metrics: |
| Attack Vector: PHYSICAL | Access Vector: LOCAL |
| Attack Complexity: LOW | Access Complexity: LOW |
| Privileges Required: HIGH | Authentication: NONE |
| User Interaction: NONE | Confidentiality: PARTIAL |
| Scope: UNCHANGED | Integrity: PARTIAL |
| Confidentiality: LOW | Availability: COMPLETE |
| Integrity: LOW | |
| Availability: HIGH | |
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