Scientific Linux Security Update : kernel on SL6.x i386/x86_64

Medium Nessus Plugin ID 64489


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


This update fixes the following security issues :

- It was found that a deadlock could occur in the Out of Memory (OOM) killer. A process could trigger this deadlock by consuming a large amount of memory, and then causing request_module() to be called. A local, unprivileged user could use this flaw to cause a denial of service (excessive memory consumption).
(CVE-2012-4398, Moderate)

- A flaw was found in the way the KVM (Kernel-based Virtual Machine) subsystem handled guests attempting to run with the X86_CR4_OSXSAVE CPU feature flag set. On hosts without the XSAVE CPU feature, a local, unprivileged user could use this flaw to crash the host system. (The 'grep --color xsave /proc/cpuinfo' command can be used to verify if your system has the XSAVE CPU feature.) (CVE-2012-4461, Moderate)

- A memory disclosure flaw was found in the way the load_script() function in the binfmt_script binary format handler handled excessive recursions. A local, unprivileged user could use this flaw to leak kernel stack memory to user-space by executing specially crafted scripts. (CVE-2012-4530, Low)

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


Update the affected packages.

See Also

Plugin Details

Severity: Medium

ID: 64489

File Name: sl_20130205_kernel_on_SL6_x.nasl

Version: $Revision: 1.3 $

Type: local

Agent: unix

Published: 2013/02/07

Modified: 2014/08/16

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 4.9

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

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: 2013/02/05

Reference Information

CVE: CVE-2012-4398, CVE-2012-4461, CVE-2012-4530