5.5
MEDIUM
CVE-2016-10147
Linux Mcryptd NULL Pointer Dereference Vulnerability
Description

crypto/mcryptd.c in the Linux kernel before 4.8.15 allows local users to cause a denial of service (NULL pointer dereference and system crash) by using an AF_ALG socket with an incompatible algorithm, as demonstrated by mcryptd(md5).

INFO

Published Date :

Jan. 18, 2017, 9:59 p.m.

Last Modified :

Nov. 21, 2024, 2:43 a.m.

Remotely Exploitable :

No

Impact Score :

3.6

Exploitability Score :

1.8
Public PoC/Exploit Available at Github

CVE-2016-10147 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-2016-10147 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-2016-10147.

URL Resource
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=48a992727d82cb7db076fa15d372178743b1f4cd Issue Tracking Patch Third Party Advisory
http://marc.info/?l=linux-crypto-vger&m=148063683310477&w=2 Third Party Advisory
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.15 Release Notes Vendor Advisory
http://www.openwall.com/lists/oss-security/2017/01/17/13 Mailing List Third Party Advisory
http://www.securityfocus.com/bid/95677
https://access.redhat.com/errata/RHSA-2017:1842
https://access.redhat.com/errata/RHSA-2017:2077
https://bugzilla.redhat.com/show_bug.cgi?id=1404200 Issue Tracking
https://github.com/torvalds/linux/commit/48a992727d82cb7db076fa15d372178743b1f4cd Issue Tracking Patch Third Party Advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=48a992727d82cb7db076fa15d372178743b1f4cd Issue Tracking Patch Third Party Advisory
http://marc.info/?l=linux-crypto-vger&m=148063683310477&w=2 Third Party Advisory
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.15 Release Notes Vendor Advisory
http://www.openwall.com/lists/oss-security/2017/01/17/13 Mailing List Third Party Advisory
http://www.securityfocus.com/bid/95677
https://access.redhat.com/errata/RHSA-2017:1842
https://access.redhat.com/errata/RHSA-2017:2077
https://bugzilla.redhat.com/show_bug.cgi?id=1404200 Issue Tracking
https://github.com/torvalds/linux/commit/48a992727d82cb7db076fa15d372178743b1f4cd Issue Tracking Patch 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-2016-10147 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2016-10147 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]

    Feb. 12, 2023

    Action Type Old Value New Value
    Changed Description Algorithms not compatible with mcryptd could be spawned by mcryptd with a direct crypto_alloc_tfm invocation using a "mcryptd(alg)" name construct. This causes mcryptd to crash the kernel if an arbitrary "alg" is incompatible and not intended to be used with mcryptd. crypto/mcryptd.c in the Linux kernel before 4.8.15 allows local users to cause a denial of service (NULL pointer dereference and system crash) by using an AF_ALG socket with an incompatible algorithm, as demonstrated by mcryptd(md5).
    Removed CVSS V2 Red Hat, Inc. (AV:L/AC:L/Au:N/C:N/I:N/A:C)
    Removed CVSS V3 Red Hat, Inc. AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
    Removed Reference https://access.redhat.com/security/cve/CVE-2016-10147 [No Types Assigned]
  • CVE Modified by [email protected]

    Feb. 02, 2023

    Action Type Old Value New Value
    Changed Description crypto/mcryptd.c in the Linux kernel before 4.8.15 allows local users to cause a denial of service (NULL pointer dereference and system crash) by using an AF_ALG socket with an incompatible algorithm, as demonstrated by mcryptd(md5). Algorithms not compatible with mcryptd could be spawned by mcryptd with a direct crypto_alloc_tfm invocation using a "mcryptd(alg)" name construct. This causes mcryptd to crash the kernel if an arbitrary "alg" is incompatible and not intended to be used with mcryptd.
    Added CVSS V2 Red Hat, Inc. (AV:L/AC:L/Au:N/C:N/I:N/A:C)
    Added CVSS V3 Red Hat, Inc. AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
    Added Reference https://access.redhat.com/security/cve/CVE-2016-10147 [No Types Assigned]
  • CVE Modified by [email protected]

    Jan. 05, 2018

    Action Type Old Value New Value
    Added Reference https://access.redhat.com/errata/RHSA-2017:2077 [No Types Assigned]
    Added Reference https://access.redhat.com/errata/RHSA-2017:1842 [No Types Assigned]
  • CVE Modified by [email protected]

    Jan. 24, 2017

    Action Type Old Value New Value
    Added Reference http://www.securityfocus.com/bid/95677 [No Types Assigned]
  • Initial Analysis by [email protected]

    Jan. 20, 2017

    Action Type Old Value New Value
    Added CVSS V2 (AV:L/AC:L/Au:N/C:N/I:N/A:C)
    Added CVSS V3 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type http://www.openwall.com/lists/oss-security/2017/01/17/13 No Types Assigned http://www.openwall.com/lists/oss-security/2017/01/17/13 Third Party Advisory, Mailing List
    Changed Reference Type http://marc.info/?l=linux-crypto-vger&m=148063683310477&w=2 No Types Assigned http://marc.info/?l=linux-crypto-vger&m=148063683310477&w=2 Third Party Advisory
    Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=1404200 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=1404200 Issue Tracking
    Changed Reference Type https://github.com/torvalds/linux/commit/48a992727d82cb7db076fa15d372178743b1f4cd No Types Assigned https://github.com/torvalds/linux/commit/48a992727d82cb7db076fa15d372178743b1f4cd Third Party Advisory, Issue Tracking, Patch
    Changed Reference Type http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.15 No Types Assigned http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.15 Release Notes, Vendor Advisory
    Changed Reference Type http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=48a992727d82cb7db076fa15d372178743b1f4cd No Types Assigned http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=48a992727d82cb7db076fa15d372178743b1f4cd Third Party Advisory, Issue Tracking, Patch
    Added CWE CWE-476
    Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:4.8.14:*:*:*:*:*:*:* (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-2016-10147 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-2016-10147 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

CVSS30 - Vulnerability Scoring System
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