CVE-2024-26777
Last modified
CVE-2024-26777 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. In the Linux kernel, the following vulnerability has been resolved: fbdev: sis: Error out if pixclock equals zero The userspace program could pass any values to the driver through ioctl() interface. If the driver doesn't check the value of pixclock, it may cause divide-by-zero error. In sisfb_check_var(), var->pixclock is used as a divisor to caculate drate before it is checked against zero. EPSS estimates a 0.25% chance of exploitation in the next 30 days.
Description
In the Linux kernel, the following vulnerability has been resolved: fbdev: sis: Error out if pixclock equals zero The userspace program could pass any values to the driver through ioctl() interface. If the driver doesn't check the value of pixclock, it may cause divide-by-zero error. In sisfb_check_var(), var->pixclock is used as a divisor to caculate drate before it is checked against zero. Fix this by checking it at the beginning. This is similar to CVE-2022-3061 in i740fb which was fixed by commit 15cf0b8.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Linux | Linux Kernel | < 4.19.308 | — |
| Linux | Linux Kernel | >= 4.20, < 5.4.270 | — |
| Linux | Linux Kernel | >= 5.5, < 5.10.211 | — |
| Linux | Linux Kernel | >= 5.11, < 5.15.150 | — |
| Linux | Linux Kernel | >= 5.16, < 6.1.80 | — |
| Linux | Linux Kernel | >= 6.2, < 6.6.19 | — |
| Linux | Linux Kernel | >= 6.7, < 6.7.7 | — |
| Linux | Linux Kernel | 6.8 | Rc1 |
| Debian | Debian Linux | 10.0 | — |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
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