CVE-2021-43412: 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…

PriorityP338high7.8CVSS 3.1

AVLACLPRLUINSUCHIHAH

EPSS

0.35%

27.0th percentile

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.

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

nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

nvdv2.07.2HIGHAV:L/AC:L/Au:N/C:C/I:C/A:C

vendor_debian7.8HIGH

Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.