CVE-2021-47521
Last modified
CVE-2021-47521 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. In the Linux kernel, the following vulnerability has been resolved: can: sja1000: fix use after free in ems_pcmcia_add_card() If the last channel is not available then "dev" is freed. Fortunately, we can just use "pdev->irq" instead. Also we should check if at least one channel was set up.. EPSS estimates a 0.24% chance of exploitation in the next 30 days.
Description
In the Linux kernel, the following vulnerability has been resolved: can: sja1000: fix use after free in ems_pcmcia_add_card() If the last channel is not available then "dev" is freed. Fortunately, we can just use "pdev->irq" instead. Also we should check if at least one channel was set up.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 3.2, < 4.4.295 |
| Linux | Linux Kernel | >= 4.5, < 4.9.293 |
| Linux | Linux Kernel | >= 4.10, < 4.14.258 |
| Linux | Linux Kernel | >= 4.15, < 4.19.221 |
| Linux | Linux Kernel | >= 4.20, < 5.4.165 |
| Linux | Linux Kernel | >= 5.5, < 5.10.85 |
| Linux | Linux Kernel | >= 5.11, < 5.15.8 |
References
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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