CVE-2017-18249
linux-4.9 - security update
7.0
HIGH
CVSS 3.1
EPSS 0.07%
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.
How to fix CVE-2017-18249
To remediate CVE-2017-18249, upgrade the affected package to a fixed version below.
- Debian/linux—upgrade to 4.12.6-1 or later
- —upgrade to 4.9.144-3.1~deb8u1 or later
Is CVE-2017-18249 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 4.12.6-1
- from 0, < 4.9.144-3.1~deb8u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.0 | CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |