PT-2017-18234 · Google · Android

Published 2017-05-12 · Updated 2020-11-09 · CVE-2017-8246

Positive Technologies (AI Summary)

CVSS v2.0

4.6

Medium

Base vector

AV:L/AC:L/Au:N/C:P/I:P/A:P

Name of the Vulnerable Software and Affected Versions Android (affected versions not specified)

Description The issue arises in the msm pcm playback close() function where prtd is assigned substream->runtime->private data. After prtd is freed, it is not sanitized and set to NULL, resulting in a dangling pointer. Other functions, such as msm pcm volume ctl put(), access the same memory with a NULL check, which could lead to the use of the freed memory.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

CVE-2017-8246

Affected Products

Android

References · 4

• https://source.android.com/security/bulletin/2017-07-01 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2017-8246 · Security Note
• https://codeaurora.org/use-after-free-alsa-pcm-playback-kernel-module-cve-2017-8246 · Note
• https://t.me/cvenotify/5383 · Telegram Post