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CVE-2019-11190

Description

The Linux kernel before 4.8 allows local users to bypass ASLR on setuid programs (such as /bin/su) because install_exec_creds() is called too late in load_elf_binary() in fs/binfmt_elf.c, and thus the ptrace_may_access() check has a race condition when reading /proc/pid/stat.

POC

Reference

- https://usn.ubuntu.com/4008-1/

- https://usn.ubuntu.com/4008-2/

- https://www.openwall.com/lists/oss-security/2019/04/03/4

- https://www.openwall.com/lists/oss-security/2019/04/03/4/1

Github

- https://github.com/ARPSyndicate/cvemon

- https://github.com/kdn111/linux-kernel-exploitation

- https://github.com/khanhdn111/linux-kernel-exploitation

- https://github.com/khanhdz-06/linux-kernel-exploitation

- https://github.com/khanhdz191/linux-kernel-exploitation

- https://github.com/khanhhdz/linux-kernel-exploitation

- https://github.com/khanhhdz06/linux-kernel-exploitation

- https://github.com/khanhnd123/linux-kernel-exploitation

- https://github.com/khnhdz/linux-kernel-exploitation

- https://github.com/knd06/linux-kernel-exploitation

- https://github.com/ndk06/linux-kernel-exploitation

- https://github.com/ndk191/linux-kernel-exploitation

- https://github.com/ssr-111/linux-kernel-exploitation

- https://github.com/wkhnh06/linux-kernel-exploitation

- https://github.com/xairy/linux-kernel-exploitation