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Vulnerability Details : CVE-2016-4578

sound/core/timer.c in the Linux kernel through 4.6 does not initialize certain r1 data structures, which allows local users to obtain sensitive information from kernel stack memory via crafted use of the ALSA timer interface, related to the (1) snd_timer_user_ccallback and (2) snd_timer_user_tinterrupt functions.
Publish Date : 2016-05-23 Last Update Date : 2018-01-04
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- CVSS Scores & Vulnerability Types

CVSS Score
2.1
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact None (There is no impact to the availability of the system.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Obtain Information
CWE ID 200

- Related OVAL Definitions

Title Definition Id Class Family
RHSA-2016:2574: kernel security, bug fix, and enhancement update (Important) oval:com.redhat.rhsa:def:20162574 unix
RHSA-2016:2584: kernel-rt security, bug fix, and enhancement update (Important) oval:com.redhat.rhsa:def:20162584 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2016-4578

# Product Type Vendor Product Version Update Edition Language
1 OS Canonical Ubuntu Linux 12.04 ~~lts~~~ Version Details Vulnerabilities
2 OS Canonical Ubuntu Linux 14.04 ~~lts~~~ Version Details Vulnerabilities
3 OS Canonical Ubuntu Linux 15.10 Version Details Vulnerabilities
4 OS Canonical Ubuntu Linux 16.04 ~~lts~~~ Version Details Vulnerabilities
5 OS Linux Linux Kernel 4.6 Version Details Vulnerabilities
6 OS Novell Suse Linux Enterprise Debuginfo 11.0 SP4 Version Details Vulnerabilities
7 OS Novell Suse Linux Enterprise Desktop 12.0 Version Details Vulnerabilities
8 OS Novell Suse Linux Enterprise Live Patching 12.0 Version Details Vulnerabilities
9 OS Novell Suse Linux Enterprise Module For Public Cloud 12.0 Version Details Vulnerabilities
10 OS Novell Suse Linux Enterprise Real Time Extension 12.0 SP1 Version Details Vulnerabilities
11 OS Novell Suse Linux Enterprise Server 11.0 SP4 Version Details Vulnerabilities
12 OS Novell Suse Linux Enterprise Server 11.0 Extra Version Details Vulnerabilities
13 OS Novell Suse Linux Enterprise Server 12.0 Version Details Vulnerabilities
14 OS Novell Suse Linux Enterprise Software Development Kit 11.0 SP4 Version Details Vulnerabilities
15 OS Novell Suse Linux Enterprise Software Development Kit 12.0 Version Details Vulnerabilities
16 OS Novell Suse Linux Enterprise Workstation Extension 12.0 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Canonical Ubuntu Linux 4
Linux Linux Kernel 1
Novell Suse Linux Enterprise Debuginfo 1
Novell Suse Linux Enterprise Desktop 1
Novell Suse Linux Enterprise Live Patching 1
Novell Suse Linux Enterprise Module For Public Cloud 1
Novell Suse Linux Enterprise Real Time Extension 1
Novell Suse Linux Enterprise Server 3
Novell Suse Linux Enterprise Software Development Kit 2
Novell Suse Linux Enterprise Workstation Extension 1

- References For CVE-2016-4578

https://github.com/torvalds/linux/commit/e4ec8cc8039a7063e24204299b462bd1383184a5 CONFIRM
http://www.ubuntu.com/usn/USN-3021-1
UBUNTU USN-3021-1
http://www.ubuntu.com/usn/USN-3021-2
UBUNTU USN-3021-2
http://www.ubuntu.com/usn/USN-3020-1
UBUNTU USN-3020-1
https://github.com/torvalds/linux/commit/9a47e9cff994f37f7f0dbd9ae23740d0f64f9fe6 CONFIRM
https://bugzilla.redhat.com/show_bug.cgi?id=1335215 CONFIRM
http://www.ubuntu.com/usn/USN-3017-2
UBUNTU USN-3017-2
http://www.ubuntu.com/usn/USN-3018-1
UBUNTU USN-3018-1
http://www.ubuntu.com/usn/USN-3018-2
UBUNTU USN-3018-2
http://www.ubuntu.com/usn/USN-3019-1
UBUNTU USN-3019-1
http://www.ubuntu.com/usn/USN-3017-3
UBUNTU USN-3017-3
http://www.ubuntu.com/usn/USN-3016-4
UBUNTU USN-3016-4
http://www.ubuntu.com/usn/USN-3017-1
UBUNTU USN-3017-1
http://www.ubuntu.com/usn/USN-3016-3
UBUNTU USN-3016-3
http://rhn.redhat.com/errata/RHSA-2016-2574.html
REDHAT RHSA-2016:2574
http://rhn.redhat.com/errata/RHSA-2016-2584.html
REDHAT RHSA-2016:2584
http://www.ubuntu.com/usn/USN-3016-1
UBUNTU USN-3016-1
http://www.ubuntu.com/usn/USN-3016-2
UBUNTU USN-3016-2
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html
SUSE SUSE-SU-2016:1985
http://www.openwall.com/lists/oss-security/2016/05/11/5
MLIST [oss-security] 20160511 Re: CVE Request: alsa: kernel information leak vulnerability in Linux sound/core/timer
http://www.securityfocus.com/bid/90535
BID 90535 Linux Kernel CVE-2016-4578 Multiple Local Information Disclosure Vulnerabilities Release Date:2017-02-02
http://www.debian.org/security/2016/dsa-3607
DEBIAN DSA-3607
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00044.html
SUSE SUSE-SU-2016:2105
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00055.html
SUSE openSUSE-SU-2016:2184
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.html
SUSE SUSE-SU-2016:1937
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e4ec8cc8039a7063e24204299b462bd1383184a5 CONFIRM
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00044.html
SUSE openSUSE-SU-2016:1641
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00054.html
SUSE SUSE-SU-2016:1690
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00052.html
SUSE SUSE-SU-2016:1672
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9a47e9cff994f37f7f0dbd9ae23740d0f64f9fe6 CONFIRM

- Metasploit Modules Related To CVE-2016-4578

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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