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Vulnerability Details : CVE-2017-8246

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.
Publish Date : 2017-05-12 Last Update Date : 2017-07-12
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- CVSS Scores & Vulnerability Types

CVSS Score
4.6
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s)
CWE ID 416

- Products Affected By CVE-2017-8246

# Product Type Vendor Product Version Update Edition Language
1 OS Linux Linux Kernel Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Linux Linux Kernel 1

- References For CVE-2017-8246

https://www.codeaurora.org/use-after-free-alsa-pcm-playback-kernel-module-cve-2017-8246 CONFIRM
https://source.android.com/security/bulletin/2017-07-01 CONFIRM

- Metasploit Modules Related To CVE-2017-8246

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)
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