Vulnerability in Linux Kernel
CVE-2018-18386
drivers/tty/n_tty.c in the Linux kernel before 4.14.11 allows local attackers (who are able to access pseudo terminals) to hang/block further usage of any pseudo terminal devices due to an EXTPROC versus ICANON confusion in TIOCINQ.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.3 (Low). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.004 (33.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 33rd percentile — 33.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Linux Kernel
- Canonical Ubuntu Linux — versions 12.04, 14.04
Weakness classification (CWE)
References
- usn.ubuntu.com/3849-1/ (vendor-advisory, Third Party Advisory)
- bugzilla.suse.com/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
- usn.ubuntu.com/3849-2/ (vendor-advisory, Third Party Advisory)
- cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.11 (Patch, Third Party Advisory, Release Notes)
- github.com/torvalds/linux/commit/966031f340185eddd05affcf72b740549f056348 (Patch, Third Party Advisory)
- git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/ (Patch, Vendor Advisory)
- access.redhat.com/errata/RHSA-2019:0831 (vendor-advisory)
Frequently asked questions
- What is CVE-2018-18386?
- CVE-2018-18386 is a low-severity vulnerability in Linux Kernel, classified under Incorrect Type Conversion or Cast. CVSS score: 3.3/10. Published 2018-10-17.
- How severe is CVE-2018-18386?
- Low severity. CVSS v3 base score is 3.3 out of 10.