7.8
HIGH
CVE-2016-4794
Linux kernel Use-After-Free Denial of Service
Description

Use-after-free vulnerability in mm/percpu.c in the Linux kernel through 4.6 allows local users to cause a denial of service (BUG) or possibly have unspecified other impact via crafted use of the mmap and bpf system calls.

INFO

Published Date :

May 23, 2016, 10:59 a.m.

Last Modified :

Nov. 21, 2024, 2:52 a.m.

Remotely Exploitable :

No

Impact Score :

5.9

Exploitability Score :

1.8
Public PoC/Exploit Available at Github

CVE-2016-4794 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-2016-4794 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
1 Canonical ubuntu_linux
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-2016-4794.

URL Resource
http://rhn.redhat.com/errata/RHSA-2016-2574.html Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-2584.html Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/05/12/6 Exploit Mailing List Third Party Advisory
http://www.securityfocus.com/bid/90625 Third Party Advisory VDB Entry
http://www.ubuntu.com/usn/USN-3053-1 Third Party Advisory
http://www.ubuntu.com/usn/USN-3054-1 Third Party Advisory
http://www.ubuntu.com/usn/USN-3055-1 Third Party Advisory
http://www.ubuntu.com/usn/USN-3056-1 Third Party Advisory
http://www.ubuntu.com/usn/USN-3057-1 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1335889 Issue Tracking Third Party Advisory VDB Entry
https://lkml.org/lkml/2016/4/17/125 Exploit Third Party Advisory
https://source.android.com/security/bulletin/2016-12-01.html Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-2574.html Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-2584.html Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/05/12/6 Exploit Mailing List Third Party Advisory
http://www.securityfocus.com/bid/90625 Third Party Advisory VDB Entry
http://www.ubuntu.com/usn/USN-3053-1 Third Party Advisory
http://www.ubuntu.com/usn/USN-3054-1 Third Party Advisory
http://www.ubuntu.com/usn/USN-3055-1 Third Party Advisory
http://www.ubuntu.com/usn/USN-3056-1 Third Party Advisory
http://www.ubuntu.com/usn/USN-3057-1 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1335889 Issue Tracking Third Party Advisory VDB Entry
https://lkml.org/lkml/2016/4/17/125 Exploit Third Party Advisory
https://source.android.com/security/bulletin/2016-12-01.html 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 months, 1 week ago
9 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-2016-4794 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2016-4794 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]

    Feb. 16, 2023

    Action Type Old Value New Value
    Changed Evaluator Description <a href="http://cwe.mitre.org/data/definitions/416.html">CWE-416: Use After Free</a> CWE-416: Use After Free
    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 http://rhn.redhat.com/errata/RHSA-2016-2584.html No Types Assigned http://rhn.redhat.com/errata/RHSA-2016-2584.html Third Party Advisory
    Changed Reference Type http://www.openwall.com/lists/oss-security/2016/05/12/6 Exploit, Third Party Advisory http://www.openwall.com/lists/oss-security/2016/05/12/6 Exploit, Mailing List, Third Party Advisory
    Changed Reference Type https://source.android.com/security/bulletin/2016-12-01.html No Types Assigned https://source.android.com/security/bulletin/2016-12-01.html Third Party Advisory
    Changed CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (including) 4.6 OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 3.18 up to (excluding) 3.18.37 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 3.19 up to (excluding) 4.1.28 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.2 up to (excluding) 4.4.16 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.5 up to (excluding) 4.6.5
  • CVE Modified by [email protected]

    Jan. 05, 2018

    Action Type Old Value New Value
    Added Reference http://rhn.redhat.com/errata/RHSA-2016-2584.html [No Types Assigned]
    Added Reference http://rhn.redhat.com/errata/RHSA-2016-2574.html [No Types Assigned]
  • CVE Modified by [email protected]

    Jan. 18, 2017

    Action Type Old Value New Value
    Added Reference https://source.android.com/security/bulletin/2016-12-01.html [No Types Assigned]
  • Modified Analysis by [email protected]

    Dec. 22, 2016

    Action Type Old Value New Value
    Changed Reference Type http://www.ubuntu.com/usn/USN-3057-1 No Types Assigned http://www.ubuntu.com/usn/USN-3057-1 Third Party Advisory
    Changed Reference Type http://www.openwall.com/lists/oss-security/2016/05/12/6 No Types Assigned http://www.openwall.com/lists/oss-security/2016/05/12/6 Third Party Advisory, Exploit
    Changed Reference Type https://lkml.org/lkml/2016/4/17/125 No Types Assigned https://lkml.org/lkml/2016/4/17/125 Third Party Advisory, Exploit
    Changed Reference Type http://www.securityfocus.com/bid/90625 No Types Assigned http://www.securityfocus.com/bid/90625 Third Party Advisory, VDB Entry
    Changed Reference Type http://www.ubuntu.com/usn/USN-3053-1 No Types Assigned http://www.ubuntu.com/usn/USN-3053-1 Third Party Advisory
    Changed Reference Type http://www.ubuntu.com/usn/USN-3056-1 No Types Assigned http://www.ubuntu.com/usn/USN-3056-1 Third Party Advisory
    Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=1335889 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=1335889 Third Party Advisory, VDB Entry, Issue Tracking
    Changed Reference Type http://www.ubuntu.com/usn/USN-3054-1 No Types Assigned http://www.ubuntu.com/usn/USN-3054-1 Third Party Advisory
    Changed Reference Type http://www.ubuntu.com/usn/USN-3055-1 No Types Assigned http://www.ubuntu.com/usn/USN-3055-1 Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
  • CVE Modified by [email protected]

    Dec. 20, 2016

    Action Type Old Value New Value
    Added Reference http://www.securityfocus.com/bid/90625 [No Types Assigned]
  • CVE Modified by [email protected]

    Nov. 28, 2016

    Action Type Old Value New Value
    Added Reference http://www.ubuntu.com/usn/USN-3057-1 [No Types Assigned]
    Added Reference http://www.ubuntu.com/usn/USN-3053-1 [No Types Assigned]
    Added Reference http://www.ubuntu.com/usn/USN-3056-1 [No Types Assigned]
    Added Reference http://www.ubuntu.com/usn/USN-3054-1 [No Types Assigned]
    Added Reference http://www.ubuntu.com/usn/USN-3055-1 [No Types Assigned]
  • Modified Analysis by [email protected]

    May. 24, 2016

    Action Type Old Value New Value
    Added Evaluator Description <a href="http://cwe.mitre.org/data/definitions/416.html">CWE-416: Use After Free</a>
    Added CPE Configuration Configuration 1 OR *cpe:2.3:o:linux:linux_kernel:4.6:*:*:*:*:*:*:* (and previous)
    Added CVSS V2 (AV:L/AC:L/Au:N/C:C/I:C/A:C)
    Added CVSS V3 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Added CWE NVD-CWE-Other
  • Initial Analysis by [email protected]

    May. 24, 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-2016-4794 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-2016-4794 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

0.05635

percentile

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