CVE-2015-4170

Impact:
Moderate
Public Date:
2015-01-19
CWE:
CWE-667
Bugzilla:
1218879: CVE-2015-4170 kernel: pty layer race condition on tty ldisc shutdown.
A flaw was discovered in the way the Linux kernel's TTY subsystem handled the tty shutdown phase. A local, unprivileged user could use this flaw to cause denial of service on the system by holding a reference to the ldisc lock during tty shutdown, causing a deadlock.

Find out more about CVE-2015-4170 from the MITRE CVE dictionary dictionary and NIST NVD.

Statement

This issue does not affect the Linux kernels as shipped with Red Hat Enterprise Linux 5, 6.

This issue affects the Linux kernel packages kernel as shipped with Red Hat Enterprise Linux 7 and Red Hat Enterprise MRG 2.

CVSS v2 metrics

Base Score 4.7
Base Metrics AV:L/AC:M/Au:N/C:N/I:N/A:C
Access Vector Local
Access Complexity Medium
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Complete

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Red Hat Security Errata

Platform Errata Release Date
Red Hat Enterprise Linux for Real Time for NFV (v. 7) (kernel-rt) RHSA-2015:2411 2015-11-19
Red Hat Enterprise Linux Extended Update Support 7.1 (kernel) RHSA-2016:1395 2016-07-12
Red Hat Enterprise Linux 7 (kernel) RHSA-2015:2152 2015-11-19

Affected Packages State

Platform Package State
Red Hat Enterprise MRG 2 realtime-kernel Will not fix
Red Hat Enterprise Linux 7 kernel-aarch64 Not affected
Red Hat Enterprise Linux 6 kernel Not affected
Red Hat Enterprise Linux 5 kernel Not affected
Red Hat Enterprise Linux 4 kernel Not affected
Unless explicitly stated as not affected, all previous versions of packages in any minor update stream of a product listed here should be assumed vulnerable, although may not have been subject to full analysis.
Last Modified