CVE-2021-43411: 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…

PriorityP344high7.5CVSS 3.1

AVNACHPRLUINSUCHIHAH

EPSS

1.23%

65.3th percentile

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.

Affected

2 ranges

Vendor	Product	Version range	Fixed in
debian	hurd	< hurd 1:0.9.git20210404-9 (sid)	hurd 1:0.9.git20210404-9 (sid)
gnu	hurd	< 0.9.20210404-9	0.9.20210404-9

CVSS provenance

nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

nvdv2.08.5HIGHAV:N/AC:M/Au:S/C:C/I:C/A:C

vendor_debian7.5HIGH

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