Scientific Linux Security Update : kernel on SL5.x i386/x86_64

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

Synopsis :

The remote Scientific Linux host is missing one or more security

Description :

This update fixes the following security issues :

- It was found that the Xen hypervisor implementation did
not perform range checking on the guest provided values
in multiple hypercalls. A privileged guest user could
use this flaw to trigger long loops, leading to a denial
of service (Xen hypervisor hang). (CVE-2012-5515,

- It was found that when running a 32-bit binary that uses
a large number of shared libraries, one of the libraries
would always be loaded at a predictable address in
memory. An attacker could use this flaw to bypass the
Address Space Layout Randomization (ASLR) security
feature. (CVE-2012-1568, Low)

- A flaw was found in the way the Linux kernel's IPv6
implementation handled overlapping, fragmented IPv6
packets. A remote attacker could potentially use this
flaw to bypass protection mechanisms (such as a firewall
or intrusion detection system (IDS)) when sending
network packets to a target system. (CVE-2012-4444, Low)

The system must be rebooted for this update to take effect.

See also :

Solution :

Update the affected packages.

Risk factor :

Medium / CVSS Base Score : 5.0

Family: Scientific Linux Local Security Checks

Nessus Plugin ID: 63677 ()

Bugtraq ID:

CVE ID: CVE-2012-1568

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