In shadow before 4.5, the newusers tool could be made to...
Critical severity
Unreviewed
Published
May 13, 2022
to the GitHub Advisory Database
•
Updated Feb 1, 2023
Description
Published by the National Vulnerability Database
Aug 4, 2017
Published to the GitHub Advisory Database
May 13, 2022
Last updated
Feb 1, 2023
In shadow before 4.5, the newusers tool could be made to manipulate internal data structures in ways unintended by the authors. Malformed input may lead to crashes (with a buffer overflow or other memory corruption) or other unspecified behaviors. This crosses a privilege boundary in, for example, certain web-hosting environments in which a Control Panel allows an unprivileged user account to create subaccounts.
References