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Privilege Escalation from lightdm Service User to root in KAuth Helper Service (CVE-2025-62876) (security.opensuse.org)

submitted 1 day ago by cm0002@suppo.fi to c/linux@programming.dev

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lightdm-kde-greeter is a KDE-themed greeter application for the lightdm display manager. At the beginning of September one of our community packagers asked us to review a D-Bus service contained in lightdm-kde-greeter for addition to openSUSE Tumbleweed.

In the course of the review we found a potential privilege escalation from the lightdm service user to root which is facilitated by this D-Bus service, among some other shortcomings in its implementation.

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[–] deafboy@lemmy.world 2 points 23 hours ago

I feel like the opensuse is always on the outskirt when discussing distros, but their security reviews are often pretty brutal, in a good way.

I have a deep respect for them ever since they ripped a new one to the deepin devs / packagers.