CVE-2017-8246
CVSS V2 Medium 4.6
CVSS V3 High 7.8
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.
Overview
- CVE ID
- CVE-2017-8246
- Assigner
- product-security@qualcomm.com
- Vulnerability Status
- Analyzed
- Published Version
- 2017-05-12T20:29:00
- Last Modified Date
- 2020-11-09T14:17:34
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:o:google:android:-:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:L/AC:L/Au:N/C:P/I:P/A:P
- Access Vector
- LOCAL
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- PARTIAL
- Availability Impact
- PARTIAL
- Base Score
- 4.6
- Severity
- MEDIUM
- Exploitability Score
- 3.9
- Impact Score
- 6.4
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- LOCAL
- Attack Compatibility
- LOW
- Privileges Required
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 7.8
- Base Severity
- HIGH
- Exploitability Score
- 1.8
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| 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 |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2017-8246 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-8246 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 16:20:50 | Added to TrackCVE | |||
| 2022-12-02 16:56:10 | security.cna@qualcomm.com | product-security@qualcomm.com | CVE Assigner | updated |
| 2022-12-02 16:56:10 | 2017-05-12T20:29Z | 2017-05-12T20:29:00 | CVE Published Date | updated |
| 2022-12-02 16:56:10 | 2020-11-09T14:17:34 | CVE Modified Date | updated | |
| 2022-12-02 16:56:10 | Analyzed | Vulnerability Status | updated |