5.1
MEDIUM
CVE-2016-2547
Linux Kernel Sound Core Use-After-Free Denial of Service
Description

sound/core/timer.c in the Linux kernel before 4.4.1 employs a locking approach that does not consider slave timer instances, which allows local users to cause a denial of service (race condition, use-after-free, and system crash) via a crafted ioctl call.

INFO

Published Date :

April 27, 2016, 5:59 p.m.

Last Modified :

Nov. 21, 2024, 2:48 a.m.

Remotely Exploitable :

No

Impact Score :

3.6

Exploitability Score :

1.4
Public PoC/Exploit Available at Github

CVE-2016-2547 has a 1 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2016-2547 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2016-2547.

URL Resource
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b5a663aa426f4884c71cd8580adae73f33570f0d Patch Vendor Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00094.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00045.html
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html
http://www.debian.org/security/2016/dsa-3503
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.1
http://www.openwall.com/lists/oss-security/2016/01/19/1 Patch
http://www.securityfocus.com/bid/83378
http://www.securitytracker.com/id/1035298
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-2931-1
http://www.ubuntu.com/usn/USN-2932-1
http://www.ubuntu.com/usn/USN-2967-1
http://www.ubuntu.com/usn/USN-2967-2
https://bugzilla.redhat.com/show_bug.cgi?id=1311566
https://github.com/torvalds/linux/commit/b5a663aa426f4884c71cd8580adae73f33570f0d Patch Vendor Advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b5a663aa426f4884c71cd8580adae73f33570f0d Patch Vendor Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00094.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00045.html
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html
http://www.debian.org/security/2016/dsa-3503
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.1
http://www.openwall.com/lists/oss-security/2016/01/19/1 Patch
http://www.securityfocus.com/bid/83378
http://www.securitytracker.com/id/1035298
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-2931-1
http://www.ubuntu.com/usn/USN-2932-1
http://www.ubuntu.com/usn/USN-2967-1
http://www.ubuntu.com/usn/USN-2967-2
https://bugzilla.redhat.com/show_bug.cgi?id=1311566
https://github.com/torvalds/linux/commit/b5a663aa426f4884c71cd8580adae73f33570f0d Patch Vendor Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

None

Python

Updated: 3 weeks, 5 days ago
10 stars 1 fork 1 watcher
Born at : Aug. 30, 2017, 2:37 p.m. This repo has been linked 1269 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2016-2547 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2016-2547 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Sep. 07, 2017

    Action Type Old Value New Value
    Added Reference http://www.securitytracker.com/id/1035298 [No Types Assigned]
  • CVE Modified by [email protected]

    Dec. 03, 2016

    Action Type Old Value New Value
    Added Reference http://www.ubuntu.com/usn/USN-2930-1 [No Types Assigned]
    Added Reference http://www.ubuntu.com/usn/USN-2931-1 [No Types Assigned]
    Added Reference http://www.ubuntu.com/usn/USN-2929-1 [No Types Assigned]
    Added Reference http://www.ubuntu.com/usn/USN-2932-1 [No Types Assigned]
    Added Reference http://www.ubuntu.com/usn/USN-2930-3 [No Types Assigned]
    Added Reference http://www.ubuntu.com/usn/USN-2930-2 [No Types Assigned]
    Added Reference http://www.ubuntu.com/usn/USN-2929-2 [No Types Assigned]
    Added Reference http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00094.html [No Types Assigned]
    Added Reference http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00045.html [No Types Assigned]
  • CVE Modified by [email protected]

    Dec. 01, 2016

    Action Type Old Value New Value
    Added Reference http://www.debian.org/security/2016/dsa-3503 [No Types Assigned]
    Added Reference http://www.ubuntu.com/usn/USN-2967-1 [No Types Assigned]
    Added Reference http://www.ubuntu.com/usn/USN-2967-2 [No Types Assigned]
  • CVE Modified by [email protected]

    Nov. 28, 2016

    Action Type Old Value New Value
    Added Reference http://www.securityfocus.com/bid/83378 [No Types Assigned]
    Added Reference http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html [No Types Assigned]
  • Modified Analysis by [email protected]

    Apr. 28, 2016

    Action Type Old Value New Value
    Added CPE Configuration Configuration 1 OR *cpe:2.3:o:linux:linux_kernel:4.4:*:*:*:*:*:*:* (and previous)
    Added CVSS V2 (AV:L/AC:M/Au:N/C:N/I:N/A:C)
    Added CVSS V3 AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type https://github.com/torvalds/linux/commit/b5a663aa426f4884c71cd8580adae73f33570f0d No Types Assigned https://github.com/torvalds/linux/commit/b5a663aa426f4884c71cd8580adae73f33570f0d Advisory, Patch
    Changed Reference Type http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b5a663aa426f4884c71cd8580adae73f33570f0d No Types Assigned http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b5a663aa426f4884c71cd8580adae73f33570f0d Advisory, Patch
    Changed Reference Type http://www.openwall.com/lists/oss-security/2016/01/19/1 No Types Assigned http://www.openwall.com/lists/oss-security/2016/01/19/1 Patch
    Added CWE CWE-362
  • Initial Analysis by [email protected]

    Apr. 28, 2016

    Action Type Old Value New Value
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2016-2547 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2016-2547 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.18 }} 0.05%

score

0.54994

percentile

CVSS30 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability