Vulnerability Description
The add_free_nid function in fs/f2fs/node.c in the Linux kernel before 4.12 does not properly track an allocated nid, which allows local users to cause a denial of service (race condition) or possibly have unspecified other impact via concurrent threads.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 4.12 |
| Debian | Debian Linux | 8.0 |
Related Weaknesses (CWE)
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=30a61dPatchThird Party Advisory
- http://www.securitytracker.com/id/1041432Third Party AdvisoryVDB Entry
- https://github.com/torvalds/linux/commit/30a61ddf8117c26ac5b295e1233eaa9629a94caPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/03/msg00017.htmlMailing ListThird Party Advisory
- https://usn.ubuntu.com/3932-1/
- https://usn.ubuntu.com/3932-2/
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=30a61dPatchThird Party Advisory
- http://www.securitytracker.com/id/1041432Third Party AdvisoryVDB Entry
- https://github.com/torvalds/linux/commit/30a61ddf8117c26ac5b295e1233eaa9629a94caPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/03/msg00017.htmlMailing ListThird Party Advisory
- https://usn.ubuntu.com/3932-1/
- https://usn.ubuntu.com/3932-2/
FAQ
What is CVE-2017-18249?
CVE-2017-18249 is a vulnerability with a CVSS score of 7.0 (HIGH). The add_free_nid function in fs/f2fs/node.c in the Linux kernel before 4.12 does not properly track an allocated nid, which allows local users to cause a denial of service (race condition) or possibly...
How severe is CVE-2017-18249?
CVE-2017-18249 has been rated HIGH with a CVSS base score of 7.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2017-18249?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Debian Debian Linux.