CVE-2021-43411 Race condition in n/a
A race condition in GNU Hurd allows attackers to gain full root access by exploiting a window during setuid executable execution.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-43411?
CVE-2021-43411 is a high-severity vulnerability in n/a, published on 7 Nov 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-362
Which versions are affected by CVE-2021-43411?
It affects 1 product.
Products include Gnu Hurd.
How do I fix CVE-2021-43411?
No fix has been published for CVE-2021-43411 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-43411 being exploited?
There is no known exploitation of CVE-2021-43411 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-gm4g-p4jj-grph.