Vulnerability in Linux Kernel
CVE-2017-18249
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.
Vulnerability class: Race Condition
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.0 (High). Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.003 (21.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 21st percentile — 21.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Linux Kernel
- Debian Linux — versions 8.0
Weakness classification (CWE)
References
- www.securitytracker.com/id/1041432 (VDB Entry, Third Party Advisory, vdb-entry)
- github.com/torvalds/linux/commit/30a61ddf8117c26ac5b295e1233eaa9629a94ca3 (Patch, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2019/03/msg00017.html (mailing-list, Mailing List, Third Party Advisory)
- git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/ (Patch, Third Party Advisory)
- usn.ubuntu.com/3932-1/ (vendor-advisory)
- usn.ubuntu.com/3932-2/ (vendor-advisory)
Frequently asked questions
- What is CVE-2017-18249?
- CVE-2017-18249 is a high-severity vulnerability in Linux Kernel, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 7.0/10. Published 2018-03-26.
- How severe is CVE-2017-18249?
- High severity. CVSS v3 base score is 7.0 out of 10.