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CVE-2014-9585

Description

The vdso_addr function in arch/x86/vdso/vma.c in the Linux kernel through 3.18.2 does not properly choose memory locations for the vDSO area, which makes it easier for local users to bypass the ASLR protection mechanism by guessing a location at the end of a PMD.

POC

Reference

- http://v0ids3curity.blogspot.in/2014/12/return-to-vdso-using-elf-auxiliary.html

- http://www.ubuntu.com/usn/USN-2513-1

- http://www.ubuntu.com/usn/USN-2514-1

Github

No PoCs found on GitHub currently.