CVE-2018-18386

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Summary

CVECVE-2018-18386
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2018-10-17 20:29:00 UTC
Updated2019-04-23 17:29:00 UTC
Descriptiondrivers/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.

Risk And Classification

Problem Types: CWE-704

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Canonical Ubuntu Linux 12.04 All All All
Operating System Canonical Ubuntu Linux 14.04 All All All
Operating System Canonical Ubuntu Linux 12.04 All All All
Operating System Canonical Ubuntu Linux 14.04 All All All
Operating System Linux Linux Kernel All All All All
Operating System Linux Linux Kernel All All All All

References

ReferenceSourceLinkTags
n_tty: fix EXTPROC vs ICANON interaction with TIOCINQ (aka FIONREAD) · torvalds/linux@966031f · GitHub MISC github.com Patch, Third Party Advisory
cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.11 MISC cdn.kernel.org Patch, Release Notes, Third Party Advisory
kernel/git/torvalds/linux.git - Linux kernel source tree MISC git.kernel.org Patch, Vendor Advisory
USN-3849-2: Linux kernel (Trusty HWE) vulnerabilities | Ubuntu security notices UBUNTU usn.ubuntu.com Third Party Advisory
Bug 1094825 – VUL-0: CVE-2018-18386: kernel-source: hangs after a pseudoterminal is put in both ICANON and EXTPROC mode (LTP pty02) MISC bugzilla.suse.com Issue Tracking, Patch, Third Party Advisory
Red Hat Customer Portal REDHAT access.redhat.com
USN-3849-1: Linux kernel vulnerabilities | Ubuntu security notices | Ubuntu UBUNTU usn.ubuntu.com Third Party Advisory
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