CVE-2017-9687 Use after free in n/a
A race condition in the Android kernel's IPA IPC log handling allows attackers to trigger a use-after-free, potentially leading to code execution or privilege escalation.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2017-9687?
CVE-2017-9687 is a high-severity use after free vulnerability in Google Android, published on 10 Oct 2017. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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.
Weakness: CWE-415
Which versions are affected by CVE-2017-9687?
It affects 1 product.
Products include Google Android.
How do I fix CVE-2017-9687?
No fix has been published for CVE-2017-9687 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2017-9687 being exploited?
There is no known exploitation of CVE-2017-9687 in the wild and no public exploit code.
Other vulnerabilities in Google Android
Sources
Also known as GHSA-97q5-m7rf-rp7v.