7.8
HIGH
CVE-2016-9794
ALSA Linux Kernel Race Condition Denial of Service
Description

Race condition in the snd_pcm_period_elapsed function in sound/core/pcm_lib.c in the ALSA subsystem in the Linux kernel before 4.7 allows local users to cause a denial of service (use-after-free) or possibly have unspecified other impact via a crafted SNDRV_PCM_TRIGGER_START command.

INFO

Published Date :

Dec. 28, 2016, 7:59 a.m.

Last Modified :

Nov. 21, 2024, 3:01 a.m.

Remotely Exploitable :

No

Impact Score :

5.9

Exploitability Score :

1.8
Public PoC/Exploit Available at Github

CVE-2016-9794 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-2016-9794 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-2016-9794.

URL Resource
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3aa02cb664c5fb1042958c8d1aa8c35055a2ebc4 Patch Vendor Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00057.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00062.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00072.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00075.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00081.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00088.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00091.html Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-2574.html Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/12/03/2 Mailing List Patch
http://www.securityfocus.com/bid/94654 Third Party Advisory VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1401494 Issue Tracking
https://github.com/torvalds/linux/commit/3aa02cb664c5fb1042958c8d1aa8c35055a2ebc4 Patch Vendor Advisory
https://patchwork.kernel.org/patch/8752621/ Issue Tracking
https://source.android.com/security/bulletin/2017-05-01 Third Party Advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3aa02cb664c5fb1042958c8d1aa8c35055a2ebc4 Patch Vendor Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00057.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00062.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00072.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00075.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00081.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00088.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00091.html Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-2574.html Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/12/03/2 Mailing List Patch
http://www.securityfocus.com/bid/94654 Third Party Advisory VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1401494 Issue Tracking
https://github.com/torvalds/linux/commit/3aa02cb664c5fb1042958c8d1aa8c35055a2ebc4 Patch Vendor Advisory
https://patchwork.kernel.org/patch/8752621/ Issue Tracking
https://source.android.com/security/bulletin/2017-05-01 Third Party 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-2016-9794 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2016-9794 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
  • Modified Analysis by [email protected]

    Jan. 17, 2023

    Action Type Old Value New Value
    Removed CVSS V3 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type http://rhn.redhat.com/errata/RHSA-2016-2574.html No Types Assigned http://rhn.redhat.com/errata/RHSA-2016-2574.html Third Party Advisory
    Changed Reference Type https://source.android.com/security/bulletin/2017-05-01 No Types Assigned https://source.android.com/security/bulletin/2017-05-01 Third Party Advisory
    Changed CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (including) 4.6.7 OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 3.2.85 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 3.3 up to (excluding) 3.10.105 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 3.11 up to (excluding) 3.12.69 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 3.13 up to (excluding) 3.16.40 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 3.17 up to (excluding) 3.18.52 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 3.19 up to (excluding) 4.4.37 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.5 up to (excluding) 4.7
  • CVE Modified by [email protected]

    Jan. 05, 2018

    Action Type Old Value New Value
    Added Reference http://rhn.redhat.com/errata/RHSA-2016-2574.html [No Types Assigned]
  • CVE Modified by [email protected]

    May. 18, 2017

    Action Type Old Value New Value
    Added Reference https://source.android.com/security/bulletin/2017-05-01 [No Types Assigned]
  • Modified Analysis by [email protected]

    Mar. 08, 2017

    Action Type Old Value New Value
    Changed CVSS V2 (AV:L/AC:L/Au:N/C:P/I:P/A:P) (AV:L/AC:L/Au:N/C:C/I:C/A:C)
    Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00057.html No Types Assigned http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00057.html Third Party Advisory
    Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00062.html No Types Assigned http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00062.html Third Party Advisory
    Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00081.html No Types Assigned http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00081.html Third Party Advisory
    Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00072.html No Types Assigned http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00072.html Third Party Advisory
    Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00088.html No Types Assigned http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00088.html Third Party Advisory
    Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00091.html No Types Assigned http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00091.html Third Party Advisory
    Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00075.html No Types Assigned http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00075.html Third Party Advisory
    Changed Reference Type http://www.securityfocus.com/bid/94654 No Types Assigned http://www.securityfocus.com/bid/94654 Third Party Advisory, VDB Entry
  • CVE Modified by [email protected]

    Jan. 18, 2017

    Action Type Old Value New Value
    Added Reference http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00091.html [No Types Assigned]
    Added Reference http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00088.html [No Types Assigned]
    Added Reference http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00081.html [No Types Assigned]
    Added Reference http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00075.html [No Types Assigned]
    Added Reference http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00072.html [No Types Assigned]
    Added Reference http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00062.html [No Types Assigned]
    Added Reference http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00057.html [No Types Assigned]
  • CVE Modified by [email protected]

    Dec. 31, 2016

    Action Type Old Value New Value
    Added Reference http://www.securityfocus.com/bid/94654 [No Types Assigned]
  • Initial Analysis by [email protected]

    Dec. 28, 2016

    Action Type Old Value New Value
    Added CVSS V2 (AV:L/AC:L/Au:N/C:P/I:P/A:P)
    Added CVSS V3 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://patchwork.kernel.org/patch/8752621/ No Types Assigned https://patchwork.kernel.org/patch/8752621/ Issue Tracking
    Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=1401494 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=1401494 Issue Tracking
    Changed Reference Type https://github.com/torvalds/linux/commit/3aa02cb664c5fb1042958c8d1aa8c35055a2ebc4 No Types Assigned https://github.com/torvalds/linux/commit/3aa02cb664c5fb1042958c8d1aa8c35055a2ebc4 Vendor Advisory, Patch
    Changed Reference Type http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3aa02cb664c5fb1042958c8d1aa8c35055a2ebc4 No Types Assigned http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3aa02cb664c5fb1042958c8d1aa8c35055a2ebc4 Vendor Advisory, Patch
    Changed Reference Type http://www.openwall.com/lists/oss-security/2016/12/03/2 No Types Assigned http://www.openwall.com/lists/oss-security/2016/12/03/2 Mailing List, Patch
    Added CWE CWE-416
    Added CWE CWE-362
    Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:4.6.7:*:*:*:*:*:*:* (and previous)
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-2016-9794 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-2016-9794 weaknesses.

Exploit Prediction

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

0.04 }} 0.00%

score

0.08236

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability