Version 1.0
This document describes security vulnerabilities that were addressed through software changes. Source code patches for these issues have been released to the Code Aurora Forum (CAF) and linked from this bulletin. These changes are applicable but not limited to Android for MSM (all Android releases from CAF using the Linux-kernel), Firefox OS for MSM & QRD Android projects. Customers were previously notified of the issues described in this bulletin. Each of the vulnerabilities has an associated security rating. A description of these ratings using v 1.2 of the ratings scheme can be found at the following link.
Please reach out to security-advisory@quicinc.com for any questions related to this bulletin.
Announcements
None.
Acknowledgements
We would like to thank these researchers for their contributions in reporting these issues to us.
| CVE-2017-8252 | Adrian Tang, Simha Sethumadhavan, and Salvatore Stolfo, Columbia University |
| CVE-2018-11304, CVE-2018-5907 | Reported to us through Google Android Security team; please see bulletins at https://source.android.com/security/overview/acknowledgements/ for individual credit information. For issues rated medium or lower, the individual credit information may appear in a future Android major release bulletin. |
Table of vulnerabilities
| Public ID | Security Rating | Technology Area | Date Reported |
| CVE-2017-8252 | Critical | HLOS | 4/14/2017 |
| CVE-2018-11304 | Medium | Audio | 2/20/2018 |
| CVE-2018-5907 | Medium | Audio | 2/20/2018 |
| CVE-2018-11817 | High | DSP Service | Internal |
| CVE-2018-13917 | High | Data Network Stack & Connectivity | Internal |
CVE-2017-8252
| CVE ID | CVE-2017-8252 |
| Title | Improper Authorization vulnerability in TrustZone |
| Description | Kernel can inject faults in computations during the execution of TrustZone leading to information disclosure. |
| Technology Area | HLOS |
| Vulnerability Type | CWE-285 Improper Authorization |
| Access Vector | Local |
| Security Rating | Critical |
| Date Reported | 4/14/2017 |
| Customer Notified Date | 8/6/2018 |
| Patch |
CVE-2018-11304
| CVE ID | CVE-2018-11304 |
| Title | Buffer Copy Without Checking Size of Input vulnerability in Audio component |
| Description | Possible buffer overflow in Audio due to lack of input validation of user-provided data that leads to integer overflow |
| Technology Area | Audio |
| Vulnerability Type | CWE-120 Buffer Copy Without Checking Size of Input (‘Classic Buffer Overflow’) |
| Access Vector | Local |
| Security Rating | Medium |
| Date Reported | 2/20/2018 |
| Customer Notified Date | 12/3/2018 |
| Patch |
|
CVE-2018-5907
| CVE ID | CVE-2018-5907 |
| Title | Buffer Copy Without Checking Size of Input vulnerability in Audio component |
| Description | Possible buffer overflow in audio due to lack of input validation of user-provided data |
| Technology Area | Audio |
| Vulnerability Type | CWE-120 Buffer Copy Without Checking Size of Input (‘Classic Buffer Overflow’) |
| Access Vector | Local |
| Security Rating | Medium |
| Date Reported | 2/20/2018 |
| Customer Notified Date | 12/3/2018 |
| Patch |
|
CVE-2018-11817
| CVE ID | CVE-2018-11817 |
| Title | Improper Access Control vulnerability in DSP |
| Description | User can offload modules and bypass the android permission model by getting access to the DSP peripherals. |
| Technology Area | DSP Service |
| Vulnerability Type | CWE-264 Permissions, Privileges, and Access Controls |
| Access Vector | Local |
| Security Rating | High |
| Date Reported | Internal |
| Customer Notified Date | 9/3/2018 |
| Patch |
CVE-2018-13917
| CVE ID | CVE-2018-13917 |
| Title | Use After Free vulnerability in sock_rfree module |
| Description | Race condition while handling sockets in kernel can lead to use-after-free issue |
| Technology Area | Data Network Stack & Connectivity |
| Vulnerability Type | CWE-416 Use After Free |
| Access Vector | Local |
| Security Rating | High |
| Date Reported | Internal |
| Customer Notified Date | 12/3/2018 |
| Patch |
Industry Coordination
Security ratings of issues included in Android security bulletins and these bulletins match in the most common scenarios but may differ in some cases due to one of the following reasons:
- Consideration of security protections such as SELinux not enforced on some platforms
- Differences in assessment of some specific scenarios that involves local denial of service or privilege escalation vulnerabilities in the high level OS kernel
Version History
| Version | Date | Comments |
| 1.0 | March 4, 2019 | Bulletin Published |