CVE-2017-8246
Samsung MSM Dangling Pointer
Description
In function msm_pcm_playback_close() in all Android releases from CAF using the Linux kernel, prtd is assigned substream->runtime->private_data. Later, prtd is freed. However, prtd is not sanitized and set to NULL, resulting in a dangling pointer. There are other functions that access the same memory (substream->runtime->private_data) with a NULL check, such as msm_pcm_volume_ctl_put(), which means this freed memory could be used.
INFO
Published Date :
May 12, 2017, 8:29 p.m.
Last Modified :
Nov. 21, 2024, 3:33 a.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
1.8
Public PoC/Exploit Available at Github
CVE-2017-8246 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
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-2017-8246.
| URL | Resource |
|---|---|
| https://source.android.com/security/bulletin/2017-07-01 | Vendor Advisory |
| https://www.codeaurora.org/use-after-free-alsa-pcm-playback-kernel-module-cve-2017-8246 | Broken Link |
| https://source.android.com/security/bulletin/2017-07-01 | Vendor Advisory |
| https://www.codeaurora.org/use-after-free-alsa-pcm-playback-kernel-module-cve-2017-8246 | Broken Link |
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
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2017-8246 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2017-8246 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]
Nov. 09, 2020
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 https://source.android.com/security/bulletin/2017-07-01 No Types Assigned https://source.android.com/security/bulletin/2017-07-01 Vendor Advisory Changed Reference Type https://www.codeaurora.org/use-after-free-alsa-pcm-playback-kernel-module-cve-2017-8246 Patch, Third Party Advisory https://www.codeaurora.org/use-after-free-alsa-pcm-playback-kernel-module-cve-2017-8246 Broken Link Changed CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* OR *cpe:2.3:o:google:android:-:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Jul. 13, 2017
Action Type Old Value New Value Added Reference https://source.android.com/security/bulletin/2017-07-01 [No Types Assigned] -
Initial Analysis by [email protected]
May. 26, 2017
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://www.codeaurora.org/use-after-free-alsa-pcm-playback-kernel-module-cve-2017-8246 No Types Assigned https://www.codeaurora.org/use-after-free-alsa-pcm-playback-kernel-module-cve-2017-8246 Patch, Third Party Advisory Added CWE CWE-416 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2017-8246 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-2017-8246
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
0.10264
percentile