Vigil@nce - Linux kernel: two vulnerabilities of OverlayFS
April 2016 by Vigil@nce
This bulletin was written by Vigil@nce : https://vigilance.fr/offer
SYNTHESIS OF THE VULNERABILITY
Several vulnerabilities were announced in OverlayFS in the Linux
kernel.
Impacted products: Ubuntu.
Severity: 2/4.
Creation date: 23/02/2016.
DESCRIPTION OF THE VULNERABILITY
Several vulnerabilities were announced in OverlayFS in the Linux
kernel.
An attacker can bypass security features in POSIX ACL, in order to
escalate his privileges. [severity:2/4; CVE-2016-1575]
An attacker can bypass security features in FUSE mount via setuid,
in order to escalate his privileges. [severity:2/4; CVE-2016-1576]
ACCESS TO THE COMPLETE VIGIL@NCE BULLETIN
https://vigilance.fr/vulnerability/Linux-kernel-two-vulnerabilities-of-OverlayFS-19003