Amazon Linux AMI : kernel Multiple Vulnerabilities (ALAS-2011-22)

This script is Copyright (C) 2013 Tenable Network Security, Inc.


Synopsis :

The remote Amazon Linux AMI host is missing a security update.

Description :

Package updates are available for Amazon Linux AMI that fix the
following vulnerabilities :

Fix possible memory corruption in xfs_readlink.

The epoll implementation in the Linux kernel 2.6.37.2 and earlier does
not properly traverse a tree of epoll file descriptors, which allows
local users to cause a denial of service (CPU consumption) via a
crafted application that makes epoll_create and epoll_ctl system
calls.

See also :

https://admin.fedoraproject.org/updates/kernel-2.6.35.14-103.fc14
http://www.nessus.org/u?73edb97e

Solution :

Run 'yum upgrade kernel' to upgrade your system. You will need to
reboot your system for the new kernel to be loaded.

Risk factor :

Medium / CVSS Base Score : 6.9
(CVSS2#AV:L/AC:M/Au:N/C:C/I:C/A:C)

Family: Amazon Linux Local Security Checks

Nessus Plugin ID: 69581 ()

Bugtraq ID:

CVE ID: CVE-2011-1083
CVE-2011-4077
CVE-2011-4081