Description
An issue was discovered in GNU Hurd before 0.9 20210404-9. A single pager port is shared among everyone who mmaps a file, allowing anyone to modify any files that they can read. This can be trivially exploited to get full root access.
References (4)
Core 4
Core References
Exploit, Mailing List, Vendor Advisory x_refsource_misc
https://lists.gnu.org/archive/html/bug-hurd/2021-05/msg00079.html
Mailing List x_refsource_misc
https://www.mail-archive.com/bug-hurd%40gnu.org/msg32113.html
Mailing List, Vendor Advisory x_refsource_misc
https://lists.gnu.org/archive/html/bug-hurd/2002-11/msg00263.html
Mailing List, Vendor Advisory x_refsource_misc
https://lists.gnu.org/archive/html/bug-hurd/2005-06/msg00191.html
Scores
CVSS v3
8.8
EPSS
0.0106
EPSS Percentile
77.9%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Details
Status
published
Products (1)
gnu/hurd
< 0.9.20210404-9
Published
Nov 07, 2021
Tracked Since
Feb 18, 2026