*** This bug is a security vulnerability *** Public security bug reported:
From https://bugs.launchpad.net/ubuntu/+source/add-nvidia- repositories/+bug/2089830/comments/5: > wget "$keyring_url" -O /tmp/cuda-keyring.deb > dpkg -i /tmp/cuda-keyring.deb > rm /tmp/cuda-keyring.deb > > That's a classic predictable-name-in-tmp security issue. I think there's kernel protection in Ubuntu that stops a user from writing to a file in /tmp even if it has 666 permissions, so that might stop this being exploitable in practice. However, it's still unacceptable from a security perspective, and we must not rely on such kernel protections. Discover credit: Andreas Hasenack ** Affects: add-nvidia-repositories (Ubuntu) Importance: Undecided Status: New ** Tags: regression-proposed ** Tags added: regression-proposed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2100494 Title: Misuse of /tmp could result in root privilege escalation To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/add-nvidia-repositories/+bug/2100494/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
