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

Medium Nessus Plugin ID 63677


The remote Scientific Linux host is missing one or more security updates.


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, Moderate)

- 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.


Update the affected packages.

See Also

Plugin Details

Severity: Medium

ID: 63677

File Name: sl_20130122_kernel_on_SL5_x.nasl

Version: $Revision: 1.1 $

Type: local

Agent: unix

Published: 2013/01/24

Modified: 2013/01/24

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N

Vulnerability Information

CPE: x-cpe:/o:fermilab:scientific_linux

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/RedHat/release, Host/RedHat/rpm-list

Patch Publication Date: 2013/01/22

Reference Information

CVE: CVE-2012-1568, CVE-2012-4444, CVE-2012-5515