CVE-2021-43412

Public Exploit

Description

An issue was discovered in GNU Hurd before 0.9 20210404-9. libports accepts fake notification messages from any client on any port, which can lead to port use-after-free. This can be exploited for local privilege escalation to get full root access.

Category

7.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.04%
Vendor Advisory gnu.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://lists.gnu.org/archive/html/bug-hurd/2021-05/msg00079.html mailing list exploit vendor advisory
https://www.mail-archive.com/bug-hurd%40gnu.org/msg32116.html

Frequently Asked Questions

What is the severity of CVE-2021-43412?
CVE-2021-43412 has been scored as a high severity vulnerability.
How to fix CVE-2021-43412?
To fix CVE-2021-43412, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-43412 being actively exploited in the wild?
It is possible that CVE-2021-43412 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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