CVE-2019-2215

A use-after-free in binder.c allows an elevation of privilege from an application to the Linux Kernel. No user interaction is required to exploit this vulnerability, however exploitation does require either the installation of a malicious local application or a separate vulnerability in a network facing application.Product: AndroidAndroid ID: A-141720095

Weakness

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory “belongs” to the code that operates on the new pointer.

Affected Software

Potential Mitigations

References

• http://packetstormsecurity.com/files/154911/Android-Binder-Use-After-Free.html
• http://packetstormsecurity.com/files/155212/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html
• http://packetstormsecurity.com/files/156495/Android-Binder-Use-After-Free.html
• http://seclists.org/fulldisclosure/2019/Oct/38
• http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20191030-01-binder-en
• https://lists.debian.org/debian-lts-announce/2020/01/msg00013.html
• https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html
• https://seclists.org/bugtraq/2019/Nov/11
• https://security.netapp.com/advisory/ntap-20191031-0005/
• https://source.android.com/security/bulletin/2019-10-01
• https://usn.ubuntu.com/4186-1/
• http://packetstormsecurity.com/files/154911/Android-Binder-Use-After-Free.html
• http://packetstormsecurity.com/files/155212/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html
• http://packetstormsecurity.com/files/156495/Android-Binder-Use-After-Free.html
• http://seclists.org/fulldisclosure/2019/Oct/38
• http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20191030-01-binder-en
• https://lists.debian.org/debian-lts-announce/2020/01/msg00013.html
• https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html
• https://seclists.org/bugtraq/2019/Nov/11
• https://security.netapp.com/advisory/ntap-20191031-0005/
• https://source.android.com/security/bulletin/2019-10-01
• https://usn.ubuntu.com/4186-1/