Linux kernel futex_requeue privilege elevation

2014-12-03T00:00:00
ID SAINT:CC7E2B1599949AEEEB57BA20490CBAFE
Type saint
Reporter SAINT Corporation
Modified 2014-12-03T00:00:00

Description

Added: 12/03/2014
CVE: CVE-2014-3153
BID: 67906
OSVDB: 107752

Background

The futex system call in Linux provides a mechanism for user-space locking.

Problem

A vulnerability in the Linux kernel allows an unprivileged user to gain root access using a specially crafted **futex_requeue** call.

Resolution

Upgrade to a fixed kernel package from your Linux vendor.

References

<https://lists.debian.org/debian-security-announce/2014/msg00130.html>

Limitations

Exploit works on CentOS 7 and Red Hat 7 and requires an existing unprivileged shell connection to the target.

Platforms

Linux