CVE-2016-0723

Published: Feb 8, 2016Modified: May 6, 2026

6.8

Vector

CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

Exploitability: 2.5 / Impact: 4.2

Source: NVD

Description

Race condition in the tty_ioctl function in drivers/tty/tty_io.c in the Linux kernel through 4.4.1 allows local users to obtain sensitive information from kernel memory or cause a denial of service (use-after-free and system crash) by making a TIOCGETD ioctl call during processing of a TIOCSETD ioctl call.

Affected (1)

Products: Linux: Linux Kernel

Linux

1 product

Linux Kernel

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Linux Linux Kernel	Up to 4.4.1

Related CWEs

CWE-200

Exposure of Sensitive Information to an Unauthorized Actor

The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

CWE-362

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently.

References (58)

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5c17c861a357e9458001f021a7afa7aab9937439

Source: secalert@redhat.com

Vendor Advisory

http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176464.html

Source: secalert@redhat.com

http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176484.html

Source: secalert@redhat.com

http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00094.html

Source: secalert@redhat.com

http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00015.html

Source: secalert@redhat.com

http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00045.html

Source: secalert@redhat.com

http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.html

Source: secalert@redhat.com

http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html

Source: secalert@redhat.com

http://source.android.com/security/bulletin/2016-07-01.html

Source: secalert@redhat.com

http://www.debian.org/security/2016/dsa-3448

Source: secalert@redhat.com

http://www.debian.org/security/2016/dsa-3503

Source: secalert@redhat.com

http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html

Source: secalert@redhat.com

http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html

Source: secalert@redhat.com

http://www.securityfocus.com/bid/82950

Source: secalert@redhat.com

http://www.securitytracker.com/id/1035695

Source: secalert@redhat.com

http://www.ubuntu.com/usn/USN-2929-1

Source: secalert@redhat.com

http://www.ubuntu.com/usn/USN-2929-2

Source: secalert@redhat.com

http://www.ubuntu.com/usn/USN-2930-1

Source: secalert@redhat.com

http://www.ubuntu.com/usn/USN-2930-2

Source: secalert@redhat.com

http://www.ubuntu.com/usn/USN-2930-3

Source: secalert@redhat.com

http://www.ubuntu.com/usn/USN-2932-1

Source: secalert@redhat.com

http://www.ubuntu.com/usn/USN-2948-1

Source: secalert@redhat.com

http://www.ubuntu.com/usn/USN-2948-2

Source: secalert@redhat.com

http://www.ubuntu.com/usn/USN-2967-1

Source: secalert@redhat.com

http://www.ubuntu.com/usn/USN-2967-2

Source: secalert@redhat.com

https://bugzilla.redhat.com/show_bug.cgi?id=1296253

Source: secalert@redhat.com

https://github.com/torvalds/linux/commit/5c17c861a357e9458001f021a7afa7aab9937439

Source: secalert@redhat.com

https://security-tracker.debian.org/tracker/CVE-2016-0723

Source: secalert@redhat.com

https://support.f5.com/csp/article/K43650115

Source: secalert@redhat.com

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5c17c861a357e9458001f021a7afa7aab9937439