Vulnerability Description
The f2fs implementation in the Linux kernel before 4.14 mishandles reference counts associated with f2fs_wait_discard_bios calls, which allows local users to cause a denial of service (BUG), as demonstrated by fstrim.
CVSS Score
5.5
MEDIUM
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | <= 4.13 |
Related Weaknesses (CWE)
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=638164PatchThird Party Advisory
- https://github.com/torvalds/linux/commit/638164a2718f337ea224b747cf5977ef143166aPatchThird Party Advisory
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=638164PatchThird Party Advisory
- https://github.com/torvalds/linux/commit/638164a2718f337ea224b747cf5977ef143166aPatchThird Party Advisory
FAQ
What is CVE-2017-18200?
CVE-2017-18200 is a vulnerability with a CVSS score of 5.5 (MEDIUM). The f2fs implementation in the Linux kernel before 4.14 mishandles reference counts associated with f2fs_wait_discard_bios calls, which allows local users to cause a denial of service (BUG), as demons...
How severe is CVE-2017-18200?
CVE-2017-18200 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2017-18200?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.