CVE-2021-43411
High
Description
An issue was discovered in GNU Hurd before 0.9 20210404-9. When trying to exec a setuid executable, there's a window of time when the process already has the new privileges, but still refers to the old task and is accessible through the old process port. This can be exploited to get full root access.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Gnu Hurd
PublishedNov 7, 2021
First seenNov 7, 2021
How to fix
Update
- gnu hurd0.9.20210404-9 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| gnu hurd | v < 0.9.20210404-9 | 0.9.20210404-9 |
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