PT-2017-18234 · Google · Android

Publicado 2017-05-12 · Atualizado 2020-11-09 · CVE-2017-8246

Positive Technologies (AI Summary)

CVSS v2.0

4.6

Média

Vetor base

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

Enumeração de Fraquezas

CWE-416

Identificadores relacionados

CVE-2017-8246

Produtos afetados

Android

Referências · 4

• https://codeaurora.org/use-after-free-alsa-pcm-playback-kernel-module-cve-2017-8246 · Nota
• https://source.android.com/security/bulletin/2017-07-01 · Aviso do Fabricante
• https://t.me/cvenotify/5383 · Publicação no Telegram
• https://nvd.nist.gov/vuln/detail/CVE-2017-8246 · Nota de Segurança