Actu
Vigil@nce - FreeBSD: privilege escalation via Linux futex
March 2016 by Vigil@nce
This bulletin was written by Vigil@nce : https://vigilance.fr/offer
SYNTHESIS OF THE VULNERABILITY
A local attacker can use a futex on the Linux Compatibility Layer
of FreeBSD, in order to escalate his privileges.
Impacted products: FreeBSD.
Severity: 2/4.
Creation date: 14/01/2016.
DESCRIPTION OF THE VULNERABILITY
The FreeBSD product implements a module to execute Linux
applications.
However, a local attacker can manipulate a linux_robust_list_head
structure via a futex, to corrupt the memory.
A local attacker can therefore use a futex on the Linux
Compatibility Layer of FreeBSD, in order to escalate his
privileges.
ACCESS TO THE COMPLETE VIGIL@NCE BULLETIN
https://vigilance.fr/vulnerability/FreeBSD-privilege-escalation-via-Linux-futex-18724
