Vulnerability Description
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.
CVSS Score
LOW
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 4.14.11 |
| Canonical | Ubuntu Linux | 12.04 |
Related Weaknesses (CWE)
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=966031PatchVendor Advisory
- https://access.redhat.com/errata/RHSA-2019:0831
- https://bugzilla.suse.com/show_bug.cgi?id=1094825Issue TrackingPatchThird Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.11PatchRelease NotesThird Party Advisory
- https://github.com/torvalds/linux/commit/966031f340185eddd05affcf72b740549f05634PatchThird Party Advisory
- https://usn.ubuntu.com/3849-1/Third Party Advisory
- https://usn.ubuntu.com/3849-2/Third Party Advisory
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=966031PatchVendor Advisory
- https://access.redhat.com/errata/RHSA-2019:0831
- https://bugzilla.suse.com/show_bug.cgi?id=1094825Issue TrackingPatchThird Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.11PatchRelease NotesThird Party Advisory
- https://github.com/torvalds/linux/commit/966031f340185eddd05affcf72b740549f05634PatchThird Party Advisory
- https://usn.ubuntu.com/3849-1/Third Party Advisory
- https://usn.ubuntu.com/3849-2/Third Party Advisory
FAQ
What is CVE-2018-18386?
CVE-2018-18386 is a vulnerability with a CVSS score of 3.3 (LOW). 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 ver...
How severe is CVE-2018-18386?
CVE-2018-18386 has been rated LOW with a CVSS base score of 3.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2018-18386?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Canonical Ubuntu Linux.