CVE-2019-13226 Race condition in n/a
An unprivileged user can exploit a race condition in deepin-clone to mount filesystems arbitrarily or prevent unmounting, leading to privilege escalation or denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2019-13226?
CVE-2019-13226 is a high-severity vulnerability in Fedoraproject Fedora, published on 4 Jul 2019. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
deepin-clone before 1.1.3 uses a predictable path /tmp/.deepin-clone/mount/<block-dev-basename> in the Helper::temporaryMountDevice() function to temporarily mount a file system as root. An unprivileged user can prepare a symlink at this location to have the file system mounted in an arbitrary location. By winning a race condition, the attacker can also enter the mount point, thereby preventing a subsequent unmount of the file system.
Which versions are affected by CVE-2019-13226?
It affects 2 products.
Products include Deepin Deepin-Clone, Fedoraproject Fedora.
How do I fix CVE-2019-13226?
No fix has been published for CVE-2019-13226 yet. Limit exposure of the affected software until one is available.
Is CVE-2019-13226 being exploited?
There is no known exploitation of CVE-2019-13226 in the wild and no public exploit code.
Other vulnerabilities in Fedoraproject Fedora
Sources
Also known as GHSA-7wr8-6fw9-mw29.