CVE-2019-1999

In binder_alloc_free_page of binder_alloc.c, there is a possible double free due to improper locking. This could lead to local escalation of privilege in the kernel with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android. Versions: Android kernel. Android ID: A-120025196.

Weakness

The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations.

Affected Software

Potential Mitigations

References

• http://www.securityfocus.com/bid/106851
• https://seclists.org/bugtraq/2019/Aug/13
• https://source.android.com/security/bulletin/2019-02-01
• https://usn.ubuntu.com/3979-1/
• https://www.debian.org/security/2019/dsa-4495
• https://www.exploit-db.com/exploits/46357/