National Vulnerability Database

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    Vulnerabilities Detail

CVE-2016-0723 Detail

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.

Source:  MITRE
Description Last Modified:  02/07/2016

Evaluator Description

CWE-416: Use After Free

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 6.8 MEDIUM
Vector: AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H (V3 legend)
Impact Score: 4.2
Exploitability Score: 2.5

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): Low
Integrity (I): None
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 5.6 MEDIUM
Vector: (AV:L/AC:L/Au:N/C:P/I:N/A:C) (V2 legend)
Impact Subscore: 7.8
Exploitability Subscore: 3.9

Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): None
Availability (A): Complete
Additional Information:
Allows unauthorized disclosure of information
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5c17c861a357e9458001f021a7afa7aab9937439 Vendor Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176464.html
http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176484.html
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00094.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00015.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00045.html
http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.html
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html
http://source.android.com/security/bulletin/2016-07-01.html
http://www.debian.org/security/2016/dsa-3448
http://www.debian.org/security/2016/dsa-3503
http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html
http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html
http://www.securityfocus.com/bid/82950
http://www.securitytracker.com/id/1035695
http://www.ubuntu.com/usn/USN-2929-1
http://www.ubuntu.com/usn/USN-2929-2
http://www.ubuntu.com/usn/USN-2930-1
http://www.ubuntu.com/usn/USN-2930-2
http://www.ubuntu.com/usn/USN-2930-3
http://www.ubuntu.com/usn/USN-2932-1
http://www.ubuntu.com/usn/USN-2948-1
http://www.ubuntu.com/usn/USN-2948-2
http://www.ubuntu.com/usn/USN-2967-1
http://www.ubuntu.com/usn/USN-2967-2
https://bugzilla.redhat.com/show_bug.cgi?id=1296253
https://github.com/torvalds/linux/commit/5c17c861a357e9458001f021a7afa7aab9937439
https://security-tracker.debian.org/tracker/CVE-2016-0723

Technical Details

Vulnerability Type (View All)

Change History

11 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2016-0723
NVD Published Date:
02/07/2016
NVD Last Modified:
12/05/2016