CVE-2017-9687 — HIGH (7.8) — White Hats Nepal

Vulnerability Description

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 Score

7.8

HIGH

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Google	Android	8.0

Related Weaknesses (CWE)

CWE-415

References

http://www.securityfocus.com/bid/101160Third Party AdvisoryVDB Entry
https://source.android.com/security/bulletin/pixel/2017-10-01Vendor Advisory
http://www.securityfocus.com/bid/101160Third Party AdvisoryVDB Entry
https://source.android.com/security/bulletin/pixel/2017-10-01Vendor Advisory

FAQ

What is CVE-2017-9687?

CVE-2017-9687 is a vulnerability with a CVSS score of 7.8 (HIGH). 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 con...

How severe is CVE-2017-9687?

CVE-2017-9687 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2017-9687?

Check the references section above for vendor advisories and patch information. Affected products include: Google Android.