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CVE-2018-18386

Good to know:

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Date: October 17, 2018

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.

Language: C

Severity Score

Related Resources (12)

https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.11
https://security-tracker.debian.org/tracker/CVE-2018-18386
https://github.com/torvalds/linux/commit/966031f340185eddd05affcf72b740549f056348
https://people.canonical.com/~ubuntu-security/cve/CVE-2018-18386
https://nvd.nist.gov/vuln/detail/CVE-2018-18386
https://bugzilla.suse.com/show_bug.cgi?id=1094825
https://access.redhat.com/errata/RHSA-2019:0831
https://access.redhat.com/security/cve/CVE-2018-18386
https://usn.ubuntu.com/3849-1/
https://usn.ubuntu.com/3849-2/
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=966031f340185eddd05affcf72b740549f056348
https://www.mend.io/vulnerability-database/CVE-2018-18386

Severity Score

Weakness Type (CWE)

Incorrect Type Conversion or Cast

CWE-704

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): LOW

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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