National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

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      Last Modified:  02/07/2016

Evaluator Description

CWE-416: Use After Free

Quick Info

CVE Dictionary Entry:
CVE-2016-0723
Original release date:
02/07/2016
Last revised:
12/05/2016
Source:
US-CERT/NIST

Impact

CVSS Severity (version 3.0):
CVSS v3 Base Score:
6.8 Medium
Vector:
CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H (legend)
Impact Score:
4.2
Exploitability Score:
2.5
CVSS Version 3 Metrics:
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 Severity (version 2.0):
CVSS v2 Base Score:
5.6 MEDIUM
Vector:
(AV:L/AC:L/Au:N/C:P/I:N/A:C) (legend)
Impact Subscore:
7.8
Exploitability Subscore:
3.9
CVSS Version 2 Metrics:
Access Vector:
Locally exploitable
Access Complexity:
Low
Authentication:
Not required to exploit
Impact Type:
Allows unauthorized disclosure of information; Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource Type Source Name
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5c17c861a357e9458001f021a7afa7aab9937439 Vendor Advisory External Source CONFIRM http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5c17c861a357e9458001f021a7afa7aab9937439
http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176464.html External Source FEDORA FEDORA-2016-2f25d12c51
http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176484.html External Source FEDORA FEDORA-2016-5d43766e33
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00094.html External Source SUSE SUSE-SU-2016:0911
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00015.html External Source SUSE openSUSE-SU-2016:1008
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00045.html External Source SUSE SUSE-SU-2016:1102
http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.html External Source SUSE SUSE-SU-2016:1764
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html External Source SUSE SUSE-SU-2016:2074
http://source.android.com/security/bulletin/2016-07-01.html External Source CONFIRM http://source.android.com/security/bulletin/2016-07-01.html
http://www.debian.org/security/2016/dsa-3448 External Source DEBIAN DSA-3448
http://www.debian.org/security/2016/dsa-3503 External Source DEBIAN DSA-3503
http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html External Source CONFIRM http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html
http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html External Source CONFIRM http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html
http://www.securityfocus.com/bid/82950 External Source BID 82950
http://www.securitytracker.com/id/1035695 External Source SECTRACK 1035695
http://www.ubuntu.com/usn/USN-2929-1 External Source UBUNTU USN-2929-1
http://www.ubuntu.com/usn/USN-2929-2 External Source UBUNTU USN-2929-2
http://www.ubuntu.com/usn/USN-2930-1 External Source UBUNTU USN-2930-1
http://www.ubuntu.com/usn/USN-2930-2 External Source UBUNTU USN-2930-2
http://www.ubuntu.com/usn/USN-2930-3 External Source UBUNTU USN-2930-3
http://www.ubuntu.com/usn/USN-2932-1 External Source UBUNTU USN-2932-1
http://www.ubuntu.com/usn/USN-2948-1 External Source UBUNTU USN-2948-1
http://www.ubuntu.com/usn/USN-2948-2 External Source UBUNTU USN-2948-2
http://www.ubuntu.com/usn/USN-2967-1 External Source UBUNTU USN-2967-1
http://www.ubuntu.com/usn/USN-2967-2 External Source UBUNTU USN-2967-2
https://bugzilla.redhat.com/show_bug.cgi?id=1296253 External Source CONFIRM https://bugzilla.redhat.com/show_bug.cgi?id=1296253
https://github.com/torvalds/linux/commit/5c17c861a357e9458001f021a7afa7aab9937439 External Source CONFIRM https://github.com/torvalds/linux/commit/5c17c861a357e9458001f021a7afa7aab9937439
https://security-tracker.debian.org/tracker/CVE-2016-0723 External Source CONFIRM https://security-tracker.debian.org/tracker/CVE-2016-0723

Technical Details

Vulnerability Type (View All)

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