Beschreibung
A flaw was found in util-linux. Improper hostname canonicalization in the `login(1)` utility, when invoked with the `-h` option, can modify the supplied remote hostname before setting `PAM_RHOST`. A remote attacker could exploit this by providing a specially crafted hostname, potentially bypassing host-based Pluggable Authentication Modules (PAM) access control rules that rely on fully qualified domain names. This could lead to unauthorized access.
CVSS 3.7EPSS 0.436%Risiko 0.38
Quelle öffnen- Veröffentlicht
- 2026-04-03 19:17:23
- Betroffene Versionen
- unknown
- Typ
- Core software
- Zuletzt geändert
- 2026-07-21 19:10:00
- Vektor
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N