The securelevels implementation in NetBSD 2.1 and earlier...
Low severity
Unreviewed
Published
May 1, 2022
to the GitHub Advisory Database
•
Updated Jan 30, 2023
Description
Published by the National Vulnerability Database
Dec 31, 2005
Published to the GitHub Advisory Database
May 1, 2022
Last updated
Jan 30, 2023
The securelevels implementation in NetBSD 2.1 and earlier, and Linux 2.6.15 and earlier, allows local users to bypass time setting restrictions and set the clock backwards by setting the clock ahead to the maximum unixtime value (19 Jan 2038), which then wraps around to the minimum value (13 Dec 1901), which can then be set ahead to the desired time, aka "settimeofday() time wrap."
References