Vulnerability CVE-2017-9687

Vulnerability Name:

CVE-2017-9687 (CCN-133322)

Assigned:

2017-10-05

Published:

2017-10-05

Updated:

2017-10-19

Summary:

In Android for MSM, Firefox OS for MSM, QRD Android, with all Android releases from CAF using the Linux kernel, two concurrent threads/processes can write the value of "0" to the debugfs file that controls ipa ipc log which will lead to the double-free in ipc_log_context_destroy(). Another issue is the Use-After-Free which can happen due to the race condition when the ipc log is deallocated via the debugfs call during a log print.

CVSS v3 Severity:

7.8 High (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
6.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Local Attack Complexity (AC): Low Privileges Required (PR): Low User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): High Integrity (I): High Availibility (A): High

7.8 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
6.8 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Local Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): Required
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): High Integrity (I): High Availibility (A): High

CVSS v2 Severity:

4.6 Medium (CVSS v2 Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P)

Exploitability Metrics:	Access Vector (AV): Local Access Complexity (AC): Low Authentication (Au): None
Impact Metrics:	Confidentiality (C): Partial Integrity (I): Partial Availibility (A): Partial

6.8 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:C/I:C/A:C)

Exploitability Metrics:	Access Vector (AV): Local Access Complexity (AC): Low Athentication (Au): Single_Instance
Impact Metrics:	Confidentiality (C): Complete Integrity (I): Complete Availibility (A): Complete

Vulnerability Type:

CWE-415

Vulnerability Consequences:

Gain Privileges

References:

Source: CCN
Type: Google Web site
Android

Source: MITRE
Type: CNA
CVE-2017-9687

Source: BID
Type: Third Party Advisory, VDB Entry
101160

Source: CCN
Type: BID-101160
Google Android Multiple Qualcomm Components Multiple Security Vulnerabilities

Source: XF
Type: UNKNOWN
android-cve20179687-priv-esc(133322)

Source: CCN
Type: Android Open Source Project
Pixel?/?Nexus Security BulletinOctober 2017

Source: CONFIRM
Type: Vendor Advisory
https://source.android.com/security/bulletin/pixel/2017-10-01

Vulnerable Configuration:

Configuration 1:

cpe:/o:google:android:8.0:*:*:*:*:*:*:*

Configuration CCN 1:

cpe:/o:google:android:*:*:*:*:*:*:*:*

Denotes that component is vulnerable

BACK